Princeton's WordNet

1. herb, herbaceous plant(noun)

   a plant lacking a permanent woody stem; many are flowering garden plants or potherbs; some having medicinal properties; some are pests

2. herb(noun)

   aromatic potherb used in cookery for its savory qualities

Kernerman English Learner's Dictionary

1. herb(noun)ɜrb; esp. Brit. hɜrb

   a plant used to flavor food

   herbs and spices

Wiktionary

1. herb(Noun)

   Any green, leafy plant, or parts thereof, used to flavor or season food.

2. herb(Noun)

   Plant whose roots, leaves or seeds, etc. are used in medicine.

3. herb(Noun)

   Marijuana.

4. herb(Noun)

   A plant whose stem is not woody and does not persist beyond each growing season

5. Herb(ProperNoun)

   A short form of the male given name Herbert.

Origin: Ultimately from herba.

Webster Dictionary

1. Herb(noun)

   a plant whose stem does not become woody and permanent, but dies, at least down to the ground, after flowering

2. Herb(noun)

   grass; herbage

• kruid, bossieAfrikaans
• عُشْبArabic
• билкаBulgarian
• ervaPortuguese (BR)
• bylina, bylinkaCzech
• das KrautGerman
• krydderurt; lægeurtDanish
• βότανοGreek
• hierbaSpanish
• (ravim)taimEstonian
• گياهFarsi
• yrttiFinnish
• herbe (aromatique, médicinale)French
• עֶשֶב-מַרפֵּא/עֶשֶב-תָבלִיןHebrew
• जड़ी-बूटीHindi
• zeljasta biljka; ljekovite trave; zaciniCroatian
• (gyógy)fű, (gyógy)növényHungarian
• tumbuh-tumbuhan untuk bumbu dan jamuIndonesian
• kryddjurtIcelandic
• erbaItalian
• 薬用植物Japanese
• 허브, 양념용 식물Korean
• žolelė, vaistažolėLithuanian
• (ārstniecības) augsLatvian
• herbaMalay
• kruidDutch
• krydderurtNorwegian
• ziołoPolish
• گياهPersian
• كوچنى بوټى چه نرمه ساقه لري داسى بوټى چه په دواو كى استعمالږىPashto
• ervaPortuguese
• plantă (aromată, medicinală)Romanian
• кухонные, лекарственные травыRussian
• bylinaSlovak
• zeliščeSlovenian
• lekovita travaSerbian
• örtSwedish
• สมุนไพรThai
• şifalı otTurkish
• (煮菜調味用的)香草，藥草Chinese (Trad.)
• траваUkrainian
• جڑی بوٹیUrdu
• thảo dượcVietnamese
• 香草，药草Chinese (Simp.)