one and the same
Identical, as in Gloria's grandfather had been, at one and the same time, a physician at the court and a general in the army. This expression is an emphatic form of “the same.” [Mid-1800s]
Words nearby one and the same
ondo,
ondograph,
one,
one and all,
one and only,
one and the same,
one another,
one by one,
one eye on,
one fell swoop, in,
one foot in the grave, have
Example sentences from the Web for one and the same
Mom and daughter are often referred to as one-and-the-same (as in “They like...”) and work hand in glove together.