You'll be convinced if you listen to me.

a selection; a choice; an option

the best

(transitive) to talk (about something); to speak (on a subject); to converse / to speak (a language)

Informal form of 話 (hanashi).

continuative of 話す

to select; to choose

Contraction of わからない (wakaranai), the informal present negative form of わかる (wakaru).

understanding (of feelings, opinions, circumstances, etc.)

causative of わかる (wakaru) / (fiction, pornography, vulgar) to "teach someone a lesson" via rough rape