confess    kwātura, kwīhana, kwīrega, kwemerana
(one is wrong to avoid being caught) kwīyagiriza
En-En dictionary 
kwīrega (-īreze)     v    1. to accuse oneself, 2. to confess
kwātura (-ātuye)     v    1. to make known, 2. bring into open from hidden place, 3. to confess, 4. to pronounce clearly, to articulate, 5. to open (flower)
kwemera (-emeye)     v    1. to be willing, to agree to, 3. to admit, to acknowledge, to confess, concur, 4. to accept, 5. to approve, 6. to believe, to believe in
kwīhana (-īhannye)     v    1. to confess, 2. to correct oneself, to discipline oneself, be converted, 3. to repent
 confess found in: Kirundi I (Study lessons)
lesson 46   Adjective Chart
lesson 93   Demonstrative Pronouns
 confess found in: Kirundi II (Grammar)
chapter 3   Conditional Sentences – “if”