There are 2 definitions of ex in English:

ex1

Line breaks: ex
Pronunciation: /ɛks
 
/

preposition

1British (Of goods) sold direct from: carpet tiles offered at a special price, ex stock
1.1North American (Of goods) without charges to the purchaser until removed from: ex warehouse
2British Not including: the cost is £5,000 ex VAT

Origin

mid 19th century (in sense 2): from Latin, 'out of'.

Definition of ex in:

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Word of the day apposite
Pronunciation: ˈapəzɪt
adjective
apt in the circumstances or relation to something

There are 2 definitions of ex in English:

ex2

Line breaks: ex
Pronunciation: /ɛks
 
/

noun

informal
A former husband, wife, or other partner in a relationship: I don’t want my ex to spoil what I have now
More example sentences
  • Before all the women who came before our wives or our exes, we were brothers.
  • I'd like to think that relations with exes could be dealt with efficiently, professionally and intelligently.
  • We have good relationships with my exes (except for my youngest's father) and their parents.

Origin

early 19th century: independent usage of ex-1.

Definition of ex in: