つぶやく
呟く
tsubuyaku

Godan Verb (ku)

1. to mutter; to murmur; to grumble

Usually Written in Kana
その内気うちき少年しょうねんはぼそぼそと自分じぶん名前なまえをつぶやいた。
sono uchikina shōnenwa bosobosoto jibunno namaeo tsubuyaita.
The shy boy murmured his name.
Godan Verb (ku)

2. to tweet; to post on Twitter

Usually Written in Kana