A tad is a very small amount, so if a recipe calls for a tad of hot pepper, it's not a good idea to dump in the whole bottle.

The informal noun or adverb tad is useful when you want another way to say "a bit" or "a smidge." If you stumble over one of your lines in the school play, you might be just a tad embarrassed, but if you fall in the middle of your big scene and pull the curtain down with you, you'll feel more than a tad humiliated. Before it meant "small amount," tad meant "young child."

Definitions of tad

n a slight amount or degree of difference

“a tad too expensive”
“not a tad of difference”
Type of:
small indefinite amount, small indefinite quantity
an indefinite quantity that is below average size or magnitude

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