say it: TEEM-wurk
teamwork is a noun meaning "cooperative work done by a team (especially when it is effective)". It carries one recorded sense.
cooperative work done by a team (especially when it is effective)
“it will take money, good planning and, above all, teamwork”
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 teamwork 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.