Thesaurus.com
Dictionary.com
Definitions

one and the same

ADJECTIVE
equal
Synonyms
STRONGEST
balanced commensurate comparable corresponding equivalent identical proportionate
STRONG
according coordinate correspondent double duplicate egalitarian invariable level look-alike matched matching parallel same uniform
WEAK
break even evenly matched fifty-fifty homologous identic indistinguishable same difference spit and image stack up with tantamount to the same degree two peas in pod unvarying
Antonyms
STRONGEST
different dissimilar mismatched unequal unlike
STRONG
changing divergent inconsistent variable
WEAK
biased disproportionate not alike unequitable unfair unjust unmatched varying
ADJECTIVE
identical
Synonyms
STRONGEST
exact indistinguishable interchangeable
WEAK
Xerox carbon-copy corresponding dead ringer ditto double duplicate equivalent identic like like two peas in a pod look-alike matching same same difference selfsame spitting image tantamount twin very very same
Antonyms
STRONGEST
different
WEAK
dissimilar distinct diverse opposite unequal unlike
ADJECTIVE
synonymous
Synonyms
STRONGEST
compatible identical identified interchangeable
WEAK
alike apposite coincident convertible correspondent corresponding equal like same similar synonymic tantamount
Antonyms
STRONGEST
different dissimilar
WEAK
opposite polar unequal

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

“Not one and the same, though,” she said, the higher pitch of her voice making her sound younger, turning her statement into a question.

From Literature

And they were one and the same.

From Literature

But it was always far-fetched that the two people could be one and the same, and that Chalamet could have pulled off rapping with EsDeeKid's Liverpudlian accent.

From BBC

I feel like it’s all one and the same to me — I just want to perform, and wherever that finds its home is where I’m putting my energy.

From Los Angeles Times

Isaac: Guillermo and I spoke very explicitly about the idea that they’re one and the same.

From Los Angeles Times

From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.