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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.

He didn’t understand that hitting targets is not the same as winning a war.

From Slate • Apr. 8, 2026

The airport authority works to keep people safe, Kedmi said, but passengers need to understand that some situations are out of its hands.

From The Wall Street Journal • Apr. 8, 2026

Scientists already understand how typical black holes form.

From Science Daily • Apr. 8, 2026

But I think the growth that you see in Agnes, from even just Season 1, you really see her grow into herself and understand her place and understand her voice in the world.

From Los Angeles Times • Apr. 8, 2026

Holding it in my hand, I finally understand what Mr. Harris was trying to tell me.

From "Red Flags and Butterflies" by Sheryl Azzam