the.com/item

The word you use when you can't be bothered to name the thing.

means A single distinct thing in a list or collection — the generic stand-in word for whatever-it-is.

from From Latin item, meaning 'likewise' or 'also,' which medieval scribes and merchants used to introduce each new entry when listing things: 'this, item that, item that...' Over time the connecting word got mistaken for naming the thing itself, and 'item' drifted from meaning 'also' to meaning 'the next thing on the list.'

romantic sense
as in 'those two are an item' since 1970s slang
etymology
from Latin item, meaning likewise, also
legal use
old lawyers wrote item to list each separate point
placeholder power
stands in for anything, which is exactly its job
the.com · every word