loudest
adj. A2 Elementary US //ˈɫaʊdəst// UK //lˈaʊdəst// loud·est
adj. making the most noise or having the highest volume compared to everyone or everything else.
adj. the superlative form of 'loud', indicating the maximum intensity of sound or volume within a group.
He is the loudest person in the room.
The loudest cheer of the night came when the home team finally scored in the last minute.
In a crowded marketplace, the loudest vendors often attract the most immediate attention, though they do not necessarily offer the highest quality goods.
Usage
Superlative form; typically preceded by the definite article 'the'.
Pitfall
the most loudestthe loudestLearners often use 'most' with one-syllable superlatives that already end in '-est'.