随意 （ズイイ） voluntary, optional, free, elective

随一 （ズイイチ） best, greatest, first

追随 （ツイズイ） following (in the footsteps of), catching up with, coming level with

付随 （フズイ） being incident to, being accompanied by, being collateral with, being attached to

随に （まにまに） at the mercy of (e.g. the waves), with (e.g. the wind)

従う （したがう） to obey (an order, law, etc.), to abide by (a rule, custom, etc.), to follow, to observe, to conform to, to yield to, to follow (a person), to accompany, to go with, to go alongside (e.g. a river), to follow (e.g. a sign), to serve (as), to engage in (work)