say it: SAHYD-trak
sidetrack is a noun and verb meaning "a short stretch of railroad track used to store rolling stock or enable trains on the same line to pass". It carries 2 recorded senses.
a short stretch of railroad track used to store rolling stock or enable trains on the same line to pass
wander from a direct or straight course
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 sidetrack 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.