pronoun
someone
SUHM-wuhn
pronoun
1
An unspecified or unidentified person.
"Someone knocked on the door late last night."
"You should ask someone who actually knows the answer."
How to Use Someone
Learner’s notesIn plain EnglishAn unnamed or unknown person.
Easily confused with
Word Forms
someones plural
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_____ knocked on the door late last night.
Etymology
From Middle English sum on, "some one".