one and the same

Not two different

One and the same means identical—not two similar things, but literally the same thing: The mysterious benefactor and her late uncle turned out to be one and the same.

The phrase emphasizes that what appeared to be separate entities are in fact a single one.

It often carries a note of revelation or surprise.

Related

equal · inseparable · joined at the hip · alike · unified · carbon copy · interchangeable · congruent · corresponding · coextensive · tantamount · six of one · selfhood · uniform · similar · monism · isomorphism · twin

Categories
Opposites
identity/distinction

one and the samedifferent

Not the same

distinct · separate · not the same · disparate · poles apart

similarity/difference

one and the samedissimilar

Not similar

unlike · distinguishable · contrasting · divergent · incompatible

Family

same, someone, anyone, ones, oneness

Familiarity
Top 50,000
Profile
Known to kids · Used worldwide · Timeless · Abstract · Everyday, not technical · Rated G