What does up mean?
Up is a highly versatile English word whose core idea concerns rising, movement in an upward direction, or an increase. It can describe movement toward a higher place, as in “go up,” progression along a path, as in “walk up the road,” or an activated state, as in “turn the radio up.” It also indicates increased amounts or levels, readiness for an activity, being awake, support for a person, or complete performance of an action. As the second element of a phrasal verb, “up” may mean that an action is finished, intensified, reversed, or otherwise altered: “clean up,” “speed up,” and “give up” illustrate these possibilities. Prepositional uses precede nouns or pronouns, particularly with directional expressions such as “up the stairs.” Although its meanings differ considerably, they are connected by spatial, temporal, and directional associations. Its usefulness lies in this combination of brevity and range: one common word can locate an object in space, describe a change in quantity, mark a transition, or carry an entire idiomatic force within a phrasal verb.
Toward or into a higher position; along or into something; in an increased, active, awake, or completed state; or as the particle of a phrasal verb.
"They went up to the top floor to meet the new guests."
From a lower position toward or into a higher one, or along and into a space or structure.
"The children ran up the stairs as soon as they arrived."
At a higher or increased level, in an active or operating state, ready for use, or no longer continuing.
"The time is up, so please put your answers down."
Used independently to mean increase or raise, or as a particle with another verb to complete, intensify, or modify an action.
"They picked up the pace as the race entered its final stage."
The plural is uncommon in simple references to upward movements. It is most often used informally for positive developments or advantages, especially in the expression “ups and downs.”
"Despite a few early setbacks, the business has had several notable ups."
English’s “up” is a grammatical shape-shifter: the same little word can be an adverb, preposition, adjective, verb, noun, and even the central particle in hundreds of phrasal verbs.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Words that share this root
Related word forms
How up is actually used
Usage is broadly similar in British and American English. As a directional adverb and preposition, “up” is neutral and extremely common; in phrasal verbs, it often adds meanings such as completion, intensity, or a change of position. Expressions such as “what’s up?” are informal, while “up” in business and statistical contexts usually indicates an increase. The precise meaning can also depend on stress, especially in phrasal verbs: “pick up” and “pick up the phone” differ in emphasis.
Easily confused with up
Up commonly expresses direction or position, while upon is a preposition meaning on, against, or at a particular time.