em
In real, traceable use. Part of the curated seed collection; community review is coming.
Sense 1
(noun) younger sibling
Examples
Wiktionary example (CC BY-SA 4.0)
Sources & notes
Imported from Wiktionary (CC BY-SA 4.0, retrieved 2026-07-29); community review pending. source ↗
Sense 2
(noun) cousin, who is descended from an ancestor who is/was a younger sibling to oneself's or one's spouse's (such as a child of a younger sibling of one of one's parents or a grandchild of a younger sibling of one of one's grandparents)
Examples
Wiktionary example (CC BY-SA 4.0)
Sense 3
(noun) person younger than oneself but of the same generation
Sense 4
(pronoun) pronoun used to refer to any person (oneself, the addressee, or any third person) described by the noun em above
Examples
Wiktionary example (CC BY-SA 4.0)
Common questions
What does “em” mean?
(noun) younger sibling
Is “em” formal or informal?
No register label has been reviewed yet — treat it as neutral and check the usage notes above.