say it: tred
tread is a verb and noun meaning "put down or press the foot, place the foot". It carries 10 recorded senses.
brace (an archer's bow) by pressing the foot against the center
apply (the tread) to a tire
the grooved surface of a pneumatic tire
the part (as of a wheel or shoe) that makes contact with the ground
structural member consisting of the horizontal part of a stair or step
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 tread 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.