1.
shout, yell, rallying cry, call
A loud call or shout used to encourage, coordinate action, or boost morale. Common in group activities, sports, and traditional arts.
Writing
掛け (to call out) + 声 (voice). Literally "calling voice."
Usage
Used in many contexts: sports cheers, group labor ("heave-ho!"), martial arts shouts (気合い), and kabuki audience calls. The phrase 掛け声をかける means "to shout/call out."
The idiomatic expression 掛け声だけ or 掛け声倒れ means "all talk and no action" — making bold declarations without following through.