こえだい 声を大にする Show inflections LinksSentence search for 声を大にするSentence search for こえをだいにするKanji details for 声 and 大Edit in JMdict Expressions (phrases, clauses, etc.), Suru verb - included1. to emphasize; to state emphatically; to speak loudly about; to raise one's voice; to lift one's voice Discussions Log in to talk about this word.