ts'üü= [ts'üü] ../mp3s/ts'/ts'uu-dl-hb-03.mp3
1. preverbal. hard; heavy; strong
Nah luk'wil ts'üü baask. It was blowing really hard.

Related entries: Dialectal Variant ts'uu=  hard | Saying ts'üün daał  You're the greatest dear! | Saying ts'üün dee  You're the greatest

Source: Draft Dictionary entry.