Keyword
refine
Info
FrequencyTop 700-800
Type
Kyōiku (3rd grade) 
?
Shinjitai ?
KankenLevel 8
Heisig729
Old form硏
Readings
けん
(94%)
と
(5%)
Composed of
stone
oriental lantern
Mnemonic

If you'd like to refine your Japanese garden and make it more classy consider adding a stone trail and a fancy oriental lantern next to it.

Used in vocabulary (470 in total)
research; study; investigation
research institute; (research) laboratory
Examples (155 in total)
He was looking into the possibility of buying a house.
He studied the way birds fly.
I concentrated my effort on the study.