somepin

As a noun terms

is .

As a pronoun somepin is

.

As pronouns the difference between somepin and something

is that somepin is while something is an uncertain or unspecified thing; one thing.

As an adjective something is

having a characteristic that the speaker cannot specify.

As an adverb something is

(degree) somewhat; to a degree.

As a verb something is

applied to an action whose name is forgotten by, unknown or unimportant to the user, eg from words of a song.

As a noun something is

an object whose nature is yet to be defined.