1To come up with or hit upon an idea; for a thought or idea to occur to someone.
会議で新しいアイデアを思いついた。
I came up with a new idea during the meeting.
彼はふといい解決策を思いついた。
He suddenly hit upon a good solution.
旅行の計画をどうするか、朝になってやっと思いついた。
I only thought of how to plan the trip this morning.
いいタイトルがなかなか思いつかない。
I can't seem to think of a good title.
2To recall or remember something (suddenly remembering something previously forgotten).
昨日の彼の名前がどうしても思いつかない。
I just can't remember his name from yesterday.
急に昔の友達の顔が思いついた。
I suddenly remembered an old friend's face.