What part of speech is “someone”
Pronoun
Definition:
the word 'someone' is a pronoun and refers to an unspecified individual person. This word can be used as a subject or object of a sentence depending on the context. For example, someone could be the subject of a sentence when talking about the individual 'Someone spilled their coffee.' It could also be used as an object of a sentence when talking about the person being addressed in the sentence 'I want to talk to someone.'
Examples:
Someone is going to the store today.
I need to talk to someone about this issue.
It's nice to see someone doing the right thing.
Tips:
it is important to note that the word 'someone' is an indefinite pronoun, so be sure not to mistakenly interchange it with a definite pronoun like 'he' or 'she'.