-uj- = suffix indicating receptacle, that which bears or contains (181).
-ul- = suffix indicating person characterized by that in the root (132).
ulm-o = elm.
-um- = indefinite suffix (268).
ung-o = nail (of finger); --ego, claw, talon.
univers-o = universe.
universitat-o = university.
unu = (adj.), one (136, 137, 180); unuigxo, union.
uragan-o = hurricane.
urb-o = city; cxefurbo, capital.
urgx-i = to be urgent or pressing.
urs-o = bear.
Uson-o = United States of America.
util-a = useful.
uz-i = to use; trouzi, to abuse.