vociferous
voh-SIF-er-usadjMeaning loud and forceful in expressing opinions
Memory hook VOC = VOICE: a VOICE that carries. Nana Lou cheers so loudly at every game that the players can hear her from the far end of the field: she is a vociferous fan.
The vociferous fans cheered every single point.
In context The parents were vociferous in their support of the library, filling the meeting with loud speeches and signs demanding that it stay open.
Similar loud, outspoken, noisy, clamorous
Opposite quiet, silent, muted
From Latin vociferari, “to shout”: vox (voice) + ferre (to carry).