I
n.
exertion
tension
1) to impose, place, put a ~ on
2) to stand the ~
3) to ease, relieve the ~
4) an emotional, mental; physical ~
5) back ~; eye~
6) a ~ on (a ~ on relations)
7) under a ~
II
v.
1) ( d ; intr. ) to ~ at (the dog ~ed at the leash/ BE lead)
2) ( E ) they were ~ing to get the car out of the mud
III
n.
variety of microorganism
a strong, virulent; weak ~