say it: tad
tad is a noun meaning "a slight amount or degree of difference". It carries one recorded sense.
a slight amount or degree of difference
“a tad too expensive”
“not a tad of difference”
“the new model is a shade better than the old one”
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for tad come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.