permanent

adjective
1

Without end, eternal.

"Nothing in this world is truly permanent."

2

Lasting for an indefinitely long time.

"The countries are now locked in a permanent state of conflict."

noun
1

A chemical hair treatment imparting or removing curliness, whose effects typically last for a period of weeks; a perm.

2

Given an n×n matrix aij, the sum over all permutations π of ∏i=1naiπ(i).

3

A card whose effects persist beyond the turn on which it is played.

verb
1

To perm (the hair).

Source: https://en.wiktionary.org/wiki/permanent

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