They fought the foe in close quarters, from house to house.
The countries had been allies in the previous war but were now foes.
WordNet 3.0 Sense Numbers: 1
He is the senator's most serious political foe in the coming election.
Those football teams have been foes throughout the history of the two colleges.
Anyone Bob perceived as a possible foe was relocated to a different department.
WordNet 3.0 Sense Numbers: 2
Let's join forces against the common foe of government waste.
It's a sobering report on toxic waste and other foes to the environment.
WordNet 0.0 Sense Numbers: 4