one and the same
The selfsame. Used to emphasize the identity or equivalence of two thingsThe selfsame. Used to emphasize the identity or equivalence of two things.
» This one and that one are the same length.
CK · Tatoeba · CC BY 2.0 FRMeaning
1 senses(idiomatic)The selfsame. Used to emphasize the identity or equivalence of two things.
It's almost as if there's one electron in two places at one and the same time.
Examples
19 sentencesThis one and that one are the same length.
This one is the same length as that one.
We're one and the same.
It's one and the same thing.
Це одне й те саме. — deniko
ruЭто одно и то же. — marafon
deDas ist ein und dasselbe. — Pfirsichbaeumchen
God is one and the same.
Origin
Possibly a calque of Latin unus et idem.Possibly a calque of Latin unus et idem.
Wiktionary, CC BY-SA 4.0 · source
Dictionary text adapted from Wiktionary (Wiktionary contributors, CC BY-SA 4.0) and Open English WordNet / Princeton WordNet (CC BY 4.0, WordNet License); shared under CC BY-SA 4.0. Example sentences and recordings are credited where they appear.