This is the 661st most frequent French word.
mêmes
"Same" or "selves" depending on context.
In this sentence, 'mêmes' is used as an adjective meaning 'same' and is plural as it agrees with 'chemises'.
Ils portent les mêmes chemises.
They are wearing the same shirts.
Here, 'mêmes' serves as a reinforcement of the pronoun 'eux', indicating emphasis or reflexivity.
C'est toujours eux-mêmes qui gagnent.
It is always themselves who win.
In this example, 'mêmes' is again an adjective meaning 'same,' describing the plural noun 'contextes'.