at once in English translates to sasa hivi in Swahili

other english words that include "at" :	swahili :
Sabbath	Jumamosi
Satan	Ibilisi
Saturday	Jumamosi
United States of America	Ulaya wa Waamerikani
aberration	kosa
appellation	jina
at all	o ote, kabisa
at present	sasa
at that place	kule, mle, pale
beneath	chini ya
cat	paka
certificate	cheti
date palm	mtende
date	tarehe
fat	nene, nono
father	baba
feather	kalamu
for the reason that	kwa sababu
gate	mlango
gateway	mlango
goat	mbuzi
great	bora, kubwa
immediately	sasa hivi
in what way	kama
latrine	choo
mat	mkeka
matter	jambo
mature	bivu
meat	nyama
nation	watu
not at all	hata kidogo
on that account	kwa hiyo
pate	kichwa
path	njia
patient	mgonjwa
plaited mat	mkeka
plate	sahani
platter	sahani
potato	kiazi
provided that	ikiwa, kama
rat	panya
rate	cheo
rather	katikati
relative	ndugu
that	kama, nini, nani
tomato	nyanya
underneath	chini, chini ya
watch	saa
water	maji
what	nini
what a	kama
what kind of	gani
what kind of?	gani?
what sort of	gani
wheat	ngano

other english words that include "once" :	swahili :
once	mara moja
once more	tena