To understand something
understand verb
to know what someone or something means
know verb
to realize or understand something
work out phrase
to understand someone or something
comprehend verb
to understand something
deduce verb
to know something as a result of considering the information or evidence that you have
make sense of something phrase
to understand something that is complicated or unusual
fall/fit into place phrase
if something falls or fits into place, you suddenly understand something that you previously have been unable to understand
see the light phrase
to suddenly realize or understand something, usually in a way that improves your life
get the idea phrase
to understand something, often something that is not expressed directly
have a feel for something phrase
to have a natural ability to do or understand something