1. Adverb (fukushi), Adverb taking the 'to' particle, Suru verb

   blowing repeatedly (e.g. to cool something down)

   Onomatopoeic or mimetic word

2. Adverb (fukushi), Adverb taking the 'to' particle

   huffing and puffing; puffing and panting; gasping

   Onomatopoeic or mimetic wordusu. as 〜言う

3. Adverb (fukushi)

   struggling (with work, studies, etc.); having difficulty

   Onomatopoeic or mimetic wordusu. as 〜言う

Also written ふうふうfuufuu、ふーふーfuufuu、フウフウfuufuu、フゥフゥfuufuu