To show that you know something is to acknowledge it. Waving "hello" to acknowledge a friend and nodding your head "yes" to acknowledge that you agree with what's being said are both acts showing knowledge or acceptance of someone or something.
Dictionaries acknowledge that the word acknowledge has roots in the 15th and 16th centuries and is a combination of roots meaning "accord," "recognize," and "understand." Whereas "knowledge" is what you know, acknowledging is showing that you know. You might acknowledge that the world is round and that the moon is not made of cheese. You also can acknowledge, or give recognition, to the people who discovered these truths.
v declare to be true or admit the existence or reality or truth of
declare untrue; contradict
- show 9 types...
- hide 9 types...
acknowledge a new land owner as one's landlord
concede the loss or worthlessness of something or somebody
make no bones about
acknowledge freely and openly
admit as valid
concede, confess, profess
admit (to a wrongdoing)
confess to God in the presence of a priest, as in the Catholic faith
confess, fink, squeal
confess to a punishable or reprehensible deed, usually under pressure
admit openly and bluntly; make no bones about
fess up, make a clean breast of, own up
admit or acknowledge a wrongdoing or error
v accept (someone) to be what is claimed or accept his power and authority
v express recognition of the presence or existence of, or acquaintance with