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Someone who displays signs of or potential for ambitious development, advancement, and achievement. That new intern we hired certainly is an up-and-comer, don't you think? I wouldn't be surprised if she ended up running this place someday. He might not have won the championship round, but this amateur is definitely an up-and-comer!

all comers

anyone who chooses to take part in an activity, typically a competition.
1992 Al Gore Earth in the Balance He has traveled to conferences and symposia in every part of the world, argued his case, and patiently taken on all comers.
See also: all, comer


n. someone with a bright future. Fred is a real comer. You’ll be hearing a lot about him.
References in classic literature ?
No, you would n't; you 'd have whisked round the comer when you saw me coming or have stared straight before you, utterly unconscious of the young woman in the baggage wagon.
It has been the use at the `Pied Merlin' this many a year back that the company should drink to the health of the last comer.
As he looked, two already mounted, came back into view around the comer, riding hard.
The eyes were blue and wide apart, with laughter-wrinkles in the comers that showed despite the tired and anxious expression of the whole face.
But the next comer proved to be not merely one of their own ilk, but likewise to have only one arm.
The latter willingly complied; and after Paul and the Doctor had disposed of themselves to their several likings, the new comer entered into a narrative of the singular reasons which had led him so far into the deserts.
When Rowena had at last done all her duty by the people in the parlor, she went upstairs to satisfy the longings of an overflow meeting there, for the parlor was not big enough to hold all the comers.
Zobeida and Amina made some difficulty about admitting the new comers, and Sadie knew the reason of their hesitation.
Then they all sat down, and drank to the health of the new comers.
But the contest was open to all comers, so no man said him nay.
The eldest of the comers, a girl who wore a triangular shawl, its corners draggling on the stubble, carried in her arms what at first sight seemed to be a doll, but proved to be an infant in long clothes.
During the evening he had been standing against a bar drinking whiskies and declaring to all comers, confidentially: "My home reg'lar livin' hell
At our place, no fear, all comers may have as much as they can eat.
He found that if he sat with the main door open he would enjoy the passing society of all comers to and fro by the gateway, and would have light enough.
A class "A" office building, to be located at the comer of State St.