to battle, to fight, to wage war / to compete (in a match, for example) / to contend (for one's own interests) / (figuratively) to get through with one's sufferings or difficulties

we; us

and; and then; and therefore / so; if so; as it is; in that way / however; but / a certain thing; a sort of thing

indicates a state (no specific semantic content)

(archaic, now poetic) farewell; goodbye

but (literary form)

adnominal of 然り (shikari, “to be like so, to be thus”)

and, then, thus

as if

Kyūjitai form of 当然