Tentatively
For Now, Just In Case
adverb
Okay, only one response for that, and that is that tentatively we have an agreement... for now. Just think of the one response you have, and that one response is to just get everyone off your back, so you agree with them... for now.
いちおう
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.
一応念のため、全データのバックアップをこのハードディスクに取っておきました。
For now I made a backup of all the data on this hard drive, just in case.