Back-formation from pease, originally an uncountable noun meaning "peas" that was construed as a plural.
pea (plural peas)
- A plant, member of the legume (Fabaceae) family
- The edible seed of some of these plants
- (baseball) A ball travelling at high velocity
Derived terms 
terms derived from pea (noun)
- Korean: 완두 (ko) (wandu)
- Latvian: zirnis (lv)
- Lithuanian: žirnis
- Maltese: piżella f
- Norwegian: ert (no)
- Okinawan: まみ (mami)
- Persian: نخود (fa) (noxod)
- Polish: groch (pl) m
- Portuguese: ervilha (pt) f
- Punjabi: ਮਟਰ (pa) (mattar)
- Romanian: mazăre (ro)
- Russian: горох (ru) (goróx) m
- Cyrillic: грашак (sh) m
- Roman: grašak (sh) m
- Slovak: hrach (sk) m
- Slovene: grah (sl) m
- Spanish: (raw pea) alverja f (Peru), arveja f (Latin America, Spain's Canary Islands), chícharo m (Cuba, Mexico, Spain's Costa del Sol and Northwest), guisante m (Spain standard usage, formal in other countries), pésol m (Southeastern Spain - also : présol) ; (tender pea) petit pois m (Costa Rica, Nicaragua, Panama, Venezuela - pronounced 'petipuá'), bisalto (es) m
- Swedish: ärta (sv)
- Tamil: பட்டாணி (ta) (paṭṭāṇi)
- Turkish: bezelye (tr)
- Urdu: مٹر (ur) (maṭar)
- Welsh: pysen (cy) f
- Japanese: please add this translation if you can
- Spanish: please add this translation if you can
From Proto-Uralic *päŋi. Cognate with Finnish pää and Hungarian fej.
pea (genitive pea, partitive pead)
- This Estonian noun needs an inflection-table template.
pea (infinitive peer)
- Formal second-person singular (usted) imperative form of peer.
- First-person singular (yo) present subjunctive form of peer.
- Formal second-person singular (usted) present subjunctive form of peer.
- Third-person singular (él, ella, also used with usted?) present subjunctive form of peer.
- (anatomy) skin