思い当たる

おもいあたる

to suddenly understand (esp. on basis of experience or memory), to come to mind, to recall (in a flash), to be reminded of, to call to mind, to think of, to strike on, to hit on an answer, to seize the crux of a problem

思いふける

おもいふける

to be lost in thought; to be immersed in reverie

心当たりがある

こころあたりがある

to have an idea, to have a clue

当たる

あたる

to touch, to be in contact, to be affixed

山が当たる

やまがあたる

to accurately guess what subjects will turn up on a test, to have one's predictions turn out correct

スポットが当たる

スポットがあたる

to be in the spotlight

罰が当たる

ばちがあたる

to incur divine punishment, to pay for one's sins

思い上がる

おもいあがる

to be conceited

思いがする

おもいがする

to feel as though...

思いあぐねる

おもいあぐねる

to think something over and over, to rack one's brains, to be at a loss

差し当たる

to face (a situation); to encounter; to be confronted with

物思いにふける

ものおもいにふける

to be lost in deep thought; to be deeply immersed in thought

思い焦がれる

おもいこがれる

to pine for

見当たる

みあたる

to be found

思い入る

おもいいる おもいはいる

to ponder, to contemplate

思い切る

おもいきる

to give up all thoughts of, to abandon, to despair of

思い知る

おもいしる

to realize, to realise

思い余る

おもいあまる

to not know how to act or what to do, to be at a loss

思い見る

おもいみる おもんみる

to reflect carefully