Frenemy is a word with a combination with the words "Friend" and "Enemy".
The word means that the person is a friend and a enemy at the same time. With the word enemy, it means, "a bad friend".
If there is a plural, used as in more than one, it is a "frenemies"
Tom is a frenemy of mine!
Jaden is a frenemy!
Do not disturb the frenemies tools!
Have that number of frenemies is'nt good.
There are many frenemies here