(adj-na,n) (1) (See 主な,主に) chief; main; principal; important; (2) (abbr) (usu. written as オモ) (See 重あど) main secondary or supporting role (in kyogen); (P)[edict]
(suf) -fold; -ply[edict]
(pref) greater degree; heavy; serious[edict]
労働
ろうどう
(n,vs,adj-no) (1) manual labor; manual labour; toil; work; (2) (abbr) (See 労働党) Labour Party; (P)[edict]
แรงงาน[longdojp]
低
to lower (one's head); to let droop; to hang down; low; to incline; beneath; low[cedict]