to work or act together or jointly for a common purpose or benefit.

to work or act with another or other persons willingly and agreeably.

to practice economic cooperation.

verb

block , delay , disturb , encumber , handicap , hinder , impede , obstruct , prevent , stop

verb

abet , advance , agree , back up , band , befriend , be in cahoots , chip in , coadjute , coincide , collaborate , combine , comply with , concert , concur , conduce , conspire , contribute , coordinate , espouse , forward , further , go along with , help , join forces , join in , league * , lend a hand , participate , partner , pitch in * , play ball * , pool resources , pull together , second , share in , show willingness , side with , stick together , succor , take part , unite , uphold , work side by side , work together , assist , join , tend