पस —    पास —    आस-पास —    आपस (में) —

पस  adv) near

पास  m) pass (paso, pase, aprobado); a) near; passed (aprobado); adv) adjacent

के पास  near, next to, toward, to; belonging to [possession marker]

के पास होना  v) have got; be passed, be approved  

के पास से  from near, from the possession of

पास करना  v) pass (aprobar)

आस-पास  near, around

पास-पास  near, side by side (uno al lado del otro, hombro con hombro); close by (cerca, cercano)

आपस (में)  each other (entre sí, entre ellos), mutual

आपसी  mutual, reciprocal