אָז ʼâz (H227)

at that time or place; also as a conjunction, therefore

1) then, at that time 1a) temporal expressions 1a1) then (past) 1a2) then, if...then (future) 1a3) earlier 1b) logical expressions 1b1) in that case 1b2) that (being so)

a demonstrative adverb;