ex-

prefix

out of / outside / former, but still living (almost always used with a hyphen) / (biology) Lacking.

I need to exfoliate my skin regularly.

意味（1）

out of

borrowed from Latin: extract, expel, except, expression, exclusion

意味（2）

outside

ex-directory; borrowed from Latin: exterior

意味（3）

former, but still living (almost always used with a hyphen)

ex-husband, ex-president, ex-wife

意味（4）

(biology) Lacking.

excaudate, exstipulate