guhakana (-hakanye)   v    1. to say no, to refuse, 2. to deny
deny    guhakana, kwīma
(emphatically) guhebūza, kwīhakana
En-En dictionary 
no    oya
(adj.) nta, ata
(emphatic) oyāye, ishwi, eka, ekāye, wapi
(to say ~) guhakana
(euphemism for a polite No) nzokubarira (lit. I will let you know)
En-En dictionary 
refuse    kwānka, kugāmbāna, guhakana, kunana
(absolutely) guta agati, kuziririza
(esp. girl to marry a certain man) kubēnga
(strongly) gukankamira
(to acknowledge one's wrong) kudadarara
(to eat) kuzira
(to eat or drink with) kunēna
(to eat what you've always eaten) guhura
(to give) kwīma
(to give to another) kwīmana
(to give another his own) kugūnga
(to go on helping someone) guhasha
(to listen, almost as crazy) gutaragurika
(to listen to authority) kugarariza
(to obey) kugaranya
(to repay loan) guheranira
En-En dictionary 
say    kubara, kugira, gukerutsa, kurānga, kuvuga, kubarira, –ti
(no infinitive)
(to say no) guhakana
(he says) ngo, ati
(nothing) kunuma
(not ~ directly) gukingitiranya
(mean things to provoke another) kwīyandagaza
(things to make others laugh) guswāganya
(say!) erega
(you don't say!) itu
(slanderous talk) kuvōvōta
(one who says things he shouldn't when with others) ikirandamuke
(one who says inappropriate things) igihururu
En-En dictionary