say it: PIG-ee-bak
piggyback is a verb, adverb and noun meaning "ride on someone's shoulders or back". It carries 8 recorded senses.
on the back or shoulder or astraddle on the hip
“she carried her child piggyback”
the act of carrying something piggyback
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 piggyback 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.