How the word "いわう（祝う）" is translated into English
賞金が当たったので、みんなで祝うつもりです。
友達の優勝をパーティーで祝いました。
今夜はどこで祝おうか。
"いわう（祝う）" is in the lesson "Gambling" (Level 32), along with 11 other useful words. LinDuo has 180 topic lessons like this one, 2,379 words in total. Every word has an illustration, a transcription and pronunciation in a female and a male voice. Just 10–15 minutes a day is enough to learn them all. Free, and works offline.
