What is the word smile in Japanese?

笑顔 /e ga o/ is widely used, literally means 'smiling face' but also means 'smile'. The Word for smile itself is 笑み /e mi/ from which a beautiful Word is made and used usually in literary or emotional cases: it's written both 微笑み /ho ho e mi/ and 頬笑み /ho ho e mi/, where in the first one the beginning kanji (微) means 'tiny, minute,faint', and in the second the beginning kanji means 'cheek'.