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Definitions

understand

[uhn-der-stand] / ˌʌn dərˈstænd /
VERB
comprehend, grasp
Synonyms
STRONGEST
apprehend catch comprehend fathom figure out follow get grasp know perceive register savvy sense
STRONG
appreciate deduce discern infer interpret master note penetrate realize recognize see
WEAK
be aware be conscious of be with it catch on get the hang of get the idea get the picture get the point have knowledge of ken make out make sense of take in take meaning
Antonyms
STRONGEST
be ignorant lose misinterpret miss misunderstand not get overlook
WEAK
mistake
VERB
think, believe, assume
Synonyms
STRONGEST
assume believe gather hear infer suppose surmise think
STRONG
concede conclude conjecture consider deduce expect fancy guess imagine know learn presume reckon
WEAK
be informed count on suspect take for granted
Antonyms
STRONG
disregard doubt ignore mistake neglect
VERB
sympathetically accept
Synonyms
STRONGEST
accept appreciate empathize sympathize
STRONG
identify with sympathize with
WEAK
empathize with feel for

Usage

What are other ways to say understand? To understand is to be fully aware not only of the meaning of something but also of its implications: I could comprehend all he said, but did not understand that he was joking. To know is to be aware of something as a fact or truth: He knows the basic facts of the subject. I know that he agrees with me. To comprehend is to know something thoroughly and to perceive its relationships to certain other ideas, facts, etc. 

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The No Kings organizers seem to understand this challenge.

From Salon • Apr. 4, 2026

He doesn’t understand a lot about his job, but he understands construction of a ballroom.

From Slate • Apr. 4, 2026

The aim is that this shared virtual view will make complex medical information easier for patients to understand and support them to feel more confident and informed when making decisions about their treatment.

From BBC • Apr. 4, 2026

“It does free up time in a way that I’m not sure we fully understand yet. This is the very beginning of how you will see behavior shift.”

From The Wall Street Journal • Apr. 3, 2026

I could tell no one because it was too terrible, because no one would understand.

From "An Elephant in the Garden" by Michael Morpurgo

From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.