Human: Meaning, Grammar, Biology, and Sexuality

Humans are members of the species Homo sapiens. They share many biological features while differing widely in appearance, anatomy, language, culture, personality, sexuality, gender, beliefs, abilities, and life experience.

Humans can:

• communicate through complex language;
• learn and teach;
• form families and communities;
• create art, technology, and institutions;
• experience emotions and relationships;
• reproduce biologically;
• develop identities and cultures;
• reflect on their own thoughts and behavior.

Every human is biologically related to the same species, but no two humans are exactly alike.

Human as a Noun

As a countable noun, human refers to one person or member of the human species.

Examples:

• A human requires food, water, and oxygen.
• Humans are social beings.
• Every human develops through several life stages.
• The study compared humans with other primates.

The plural is humans, not humanes.

The expression a human is grammatically correct, but a human being or a person may sound more natural when discussing an individual socially.

Compare:

• A human entered the room.
• A person entered the room.

The second sentence is more natural in ordinary conversation.

Human as an Adjective

As an adjective, human appears before a noun:

• human body;
• human behavior;
• human sexuality;
• human development;
• human rights;
• human reproduction;
• human relationships;
• human experience.

Examples:

• Sexuality is part of the human experience.
• The course examines human development.
• Human bodies vary naturally.

Adjectives do not change for singular or plural nouns:

• one human body;
• several human bodies.

Common scientific and anatomical expressions include:

• human anatomy;
• human biology;
• human body;
• human brain;
• human cells;
• human genes;
• human reproduction;
• human development.

Social and cultural expressions include:

• human society;
• human behavior;
• human relationships;
• human culture;
• human history;
• human dignity;
• human rights;
• human experience.

Sexuality-related expressions include:

• human sexuality;
• human sexual response;
• human sexual behavior;
• human reproductive system;
• human sexual development;
• human intimacy.

These combinations show that human may refer to biological, psychological, social, legal, or cultural aspects of people.

• Human: shorter and common in scientific or general statements;
• Human being: more explicitly refers to an individual person.

Examples:

• Humans need social connection.
• Every human being deserves dignity.

Human being is often preferred when emphasizing individuality, moral value, or personal experience.

The phrase can also contrast people with machines, animals, or fictional beings:

• The robot behaved almost like a human being.

Compare:

• Humans evolved over a long period.
• A person called the office.
• Every person has a personal history.

The word human often emphasizes species membership or human characteristics. Person emphasizes individuality, identity, or social recognition.

In law and philosophy, person may sometimes include organizations or hypothetical nonhuman beings, while human specifically refers to the biological species.

It may refer to:

1. all humans collectively;
2. the quality of being human;
3. kindness, compassion, or sympathy.

Examples:

• Climate change affects humanity.
• The novel explores our shared humanity.
• She treated the patient with humanity.

A human is an individual member of the species, while humanity commonly refers to humans as a group or to humane qualities.

• Human: relating to people;
• Humane: showing compassion and avoiding unnecessary suffering.

Examples:

• Human behavior is complex.
• The animal received humane treatment.

A person can be human without behaving humanely.

The opposite of humane is inhumane, meaning cruel or lacking compassion.

Related words include:

• humanity;
• humanism;
• humanitarian;
• humane;
• humanize;
• dehumanize.

To humanize something means to present it as more understandable, compassionate, or personally relatable.

Example:

• The documentary humanized people who had previously been treated only as statistics.

To dehumanize someone means to deny or ignore their individuality, dignity, or human qualities.

Humans are primates and share evolutionary relationships with other animals. Common biological features include:

• upright walking;
• highly developed brains;
• hands capable of precise movement;
• complex speech and language;
• long periods of childhood development;
• strong social dependence;
• cultural learning.

Although humans are biologically one species, genetic and physical variation exists among individuals and populations.

Traits such as skin color, height, facial features, hair, body shape, and certain health risks may vary. These differences do not divide humans into separate biological species.

Major systems include:

• nervous system;
• circulatory system;
• respiratory system;
• digestive system;
• endocrine system;
• immune system;
• skeletal system;
• muscular system;
• urinary system;
• reproductive system.

The body is made of cells, tissues, organs, fluids, and chemical substances working together.

Human bodies vary naturally because of genetics, age, hormones, environment, disability, illness, development, and medical history.

Common stages include:

• prenatal development;
• infancy;
• childhood;
• adolescence;
• adulthood;
• older adulthood.

Development may involve changes in:

• body size and structure;
• brain function;
• movement;
• language;
• emotions;
• identity;
• relationships;
• sexuality;
• reproductive function;
• social responsibility.

These areas do not develop at exactly the same speed. Physical maturity, legal adulthood, emotional maturity, and social independence are separate concepts.

The reproductive process may involve:

• production of sex cells;
• ovulation;
• ejaculation;
• fertilization;
• implantation;
• pregnancy;
• childbirth;
• lactation.

Assisted reproductive methods may also help create a pregnancy. These can include insemination, in vitro fertilization, donor gametes, and embryo transfer.

Not every human can or chooses to reproduce. Infertility, medical conditions, age, personal preference, and life circumstances may influence reproductive experience.

Reproduction is one human biological ability, but it is not a requirement for a meaningful adult life.

It may include:

• sexual orientation;
• romantic orientation;
• gender identity;
• gender expression;
• sexual attraction;
• sexual response;
• intimate relationships;
• sexual behavior;
• reproductive choices;
• cultural beliefs about sex.

Human sexuality is influenced by biology, psychology, relationships, culture, religion, education, health, and personal experience.

It is broader than sexual intercourse or reproduction.

A person may identify as:

• a woman;
• a man;
• nonbinary;
• genderfluid;
• agender;
• another gender.

Gender identity is a person’s internal understanding of gender. Gender expression concerns outward presentation through clothing, voice, hairstyle, behavior, or appearance.

Human bodies and gender identities do not all fit one simple pattern. Intersex variations, transgender identities, cultural gender categories, and individual experiences demonstrate this diversity.

Sexual-orientation labels include:

• heterosexual;
• gay;
• lesbian;
• bisexual;
• pansexual;
• asexual;
• demisexual;
• queer;
• other terms.

Romantic and sexual attraction may follow similar or different patterns.

Orientation is one aspect of human experience and does not determine intelligence, character, profession, gender expression, or personal worth.

These may include:

• family relationships;
• friendships;
• romantic partnerships;
• sexual relationships;
• marriages;
• caregiving relationships;
• professional connections;
• community bonds.

Relationships may provide affection, cooperation, emotional support, shared identity, practical help, and belonging.

Different cultures recognize different family structures, relationship roles, and expectations. No single relationship pattern represents every human society.

Discussions of human nature may involve:

• cooperation;
• competition;
• curiosity;
• affection;
• aggression;
• creativity;
• empathy;
• self-interest;
• morality;
• social belonging.

The phrase is common in philosophy, psychology, religion, politics, and literature.

There is debate about which behaviors are biologically influenced and which are mainly learned through culture and experience.

Only Human

Only human means naturally imperfect or capable of making mistakes.

• I forgot the appointment because I am only human.

Human Error

Human error is a mistake caused by a person rather than a machine or system.

• The incorrect entry resulted from human error.

Human Touch

The human touch means personal warmth, compassion, or direct personal involvement.

• The automated service lacked the human touch.

Human Interest

A human-interest story focuses on people’s personal experiences and emotions.

• The journalist wrote a human-interest story about the family.

Humanly Possible

Humanly possible means possible for a person to achieve.

• We completed the work as quickly as humanly possible.

It may suggest:

• biological species;
• personal identity;
• imperfection;
• compassion;
• shared experience;
• dignity;
• emotional depth;
• social belonging.

Expressions such as human dignity and common humanity emphasize the equal value and shared condition of people.

The word may also be contrasted with animal, machine, supernatural, or artificial, depending on the subject.

Human sexuality means only sexual intercourse.
It includes attraction, identity, development, relationships, pleasure, behavior, and reproduction.

Every human reproduces.
Many people cannot or choose not to have children.

All humans have identical bodies.
Human anatomy and development vary naturally.

Gender is determined entirely by appearance.
Gender identity, anatomy, and expression are distinct concepts.

Human and humane are interchangeable.
Human relates to people; humane means compassionate.

1. A human is a member of the species Homo sapiens.
2. Humans depend on language, culture, and social cooperation.
3. The human body contains several connected organ systems.
4. Human development continues throughout life.
5. Sexuality is part of the human experience.
6. Every human being has an individual history.
7. The word humane is not a synonym for human.
8. The mistake resulted from human error.
9. The article examines human relationships and identity.
10. People are only human and sometimes make mistakes.

Human sexuality varies widely. People may differ in gender, orientation, desire, anatomy, reproductive ability, relationship style, and forms of sexual expression.

Understanding the term human provides a broad foundation for studying sexual anatomy, reproduction, gender, relationships, health, culture, and the diverse ways people experience their bodies and identities.