IPA: /ˈsʌm.wɛər/
KK: /ˈsʌmˌwɛr/
In or to a place that is not specifically identified or known.
I left my keys somewhere in the house.
A place that is not specifically identified or known.
I left my keys somewhere in the house.
Somewhere → It is formed from "some" (from Old English "sum", meaning a certain amount or unspecified) and "where" (from Old English "hwær", meaning in or at what place). The word "somewhere" refers to an unspecified or certain place.
Think of 'some' as indicating an unspecified amount and 'where' as asking about a place — together, they help you remember that 'somewhere' means a certain or unspecified place.