बाल (baal)

noun/adjective Two unrelated words share this spelling: 'hair' (the everyday noun, almost always used in plural for the hair on one's head) and 'child/childlike' (a more literary root that survives mainly in compounds and set phrases).
Sense 1 : hair (of the head or body)
noun, masculine Almost always used in the plural (बाल baal) even for 'hair' in general, since Hindi treats hair as a countable mass of strands: बाल सफ़ेद हो गए हैं (baal safed ho gae hain, 'the hair has turned white').
Synonyms: केश (kesh, literary)
Frequency: high
Cultural Note: Hair carries a lot of emotional weight in everyday Hindi speech -- a mother oiling a child's बाल (baal) before school, or an elder saying बाल सफ़ेद हो गए (baal safed ho gae, 'the hair has gone white') to mean 'I've grown old,' are both very ordinary images you'll hear constantly.
Common Mistakes: 1) Learners often use the singular form when describing someone's hair in general, but native speakers default to plural agreement: मेरे बाल लंबे हैं (mere baal lambe hain), not a singular verb form. 2) बाल (baal) 'hair' and बाल (baal) 'child-like' look identical in isolation; only context (and, in speech, sometimes vowel length in related derived words) tells you which is meant.
Sample Sentences:
मेरे बाल बहुत लंबे हैं। My hair is very long.
(mere baal bahut lambe hain।)
Register: Casual -- Mood: Indicative -- Tense: Present -- Voice: Active
माँ हर सुबह मेरे बालों में तेल लगाती है। Mom oils my hair every morning.
(maan har subah mere baalon men tel lagaatii hai।)
Register: Casual -- Mood: Indicative -- Aspect: Habitual -- Tense: Present -- Voice: Active
उसके बाल सफ़ेद हो गए हैं। His hair has gone white.
(uske baal safed ho gae hain।)
Register: Neutral -- Mood: Indicative -- Aspect: Perfective -- Tense: Past -- Voice: Active
मैं कल पार्लर जाकर बाल कटवाऊँगी। I'll go to the parlor and get my hair cut tomorrow.
(main kal paarlar jaakar baal katvaaoongii।)
Register: Casual -- Mood: Indicative -- Tense: Future -- Voice: Active
अपने बाल ठीक से बना लो, स्कूल के लिए देर हो रही है। Fix your hair properly, we're getting late for school.
(apne baal thiik se banaa lo, skool ke lie der ho rahii hai।)
Register: Casual -- Mood: Imperative -- Voice: Active
अगर वह बाल इतने छोटे न कटवाता तो अच्छा लगता। It would have looked nice if he hadn't gotten his hair cut so short.
(agar vah baal itne chhote n katvaataa to achchhaa lagtaa।)
Register: Casual -- Mood: Counterfactual -- Aspect: Habitual -- Voice: Active
दादी जी कहती हैं कि उनके ज़माने में लड़कियाँ बाल नहीं कटवाती थीं। Grandma says that in her time, girls didn't cut their hair.
(daadii jii kahtii hain ki unke zamaane men ladkiyaan baal nahiin katvaatii thiin।)
Register: Neutral -- Mood: Indicative -- Aspect: Habitual -- Tense: Past -- Voice: Active
बालों को शैम्पू से धोने के बाद कंडीशनर लगाना चाहिए। After washing your hair with shampoo, you should apply conditioner.
(baalon ko shaimpoo se dhone ke baad kandiishnar lagaanaa chaahie।)
Register: Neutral -- Mood: Subjunctive -- Tense: Present -- Voice: Active
उसके बाल हवा में उड़ रहे थे। Her hair was flying in the wind.
(uske baal havaa men ud rahe the।)
Register: Literary -- Mood: Indicative -- Aspect: Continuous -- Tense: Past -- Voice: Active
डॉक्टर ने कहा कि तनाव की वजह से मेरे बाल झड़ रहे हैं। The doctor said my hair is falling out because of stress.
(doktar ne kahaa ki tanaav kii vajah se mere baal jhad rahe hain।)
Register: Neutral -- Mood: Indicative -- Aspect: Continuous -- Tense: Present -- Voice: Active
बाल तो बढ़ते रहते हैं, बस उनकी देखभाल ज़रूरी है। Hair keeps growing, you just need to take care of it.
(baal to badhte rahte hain, bas unkii dekhbhaal zaroorii hai।)
Register: Neutral -- Mood: Indicative -- Aspect: Habitual -- Tense: Present -- Voice: Active
उसके सिर पर एक भी बाल नहीं बचा है। There's not even a single hair left on his head.
(uske sir par ek bhii baal nahiin bachaa hai।)
Register: Casual -- Mood: Indicative -- Aspect: Perfective -- Tense: Present -- Voice: Active
Sense 2 : childlike, young, immature (root sense, mostly in compounds)
adjective Rarely stands alone in modern conversation; it survives chiefly as the first element of compounds like बालमन (baalman, 'child's mind') or बालसुलभ (baalsulabh, 'childlike/naive'), and in the noun बालक (baalak, 'boy/child') itself.
Synonyms: बालक-सा (baalak-saa), शिशु-सा (shishu-saa, literary)
Frequency: literary
Cultural Note: This बाल (baal) is the same root you see in बालक (baalak, 'boy') and बालिका (baalikaa, 'girl') -- useful to recognize in school names and children's programs, even though you won't use it as a standalone adjective in casual speech.
Sample Sentences:
यह पत्रिका बाल मन को समझने के लिए लिखी गई है। This magazine is written to understand the childlike mind.
(yah patrikaa baal man ko samajhne ke lie likhii gaii hai।)
Register: Literary -- Mood: Indicative -- Aspect: Perfective -- Tense: Present -- Voice: Passive
बाल विवाह अब कानूनन अपराध है। Child marriage is now a legal crime.
(baal vivaah ab kaanoonan apraadh hai।)
Register: Formal -- Mood: Indicative -- Tense: Present -- Voice: Active
सरकार बाल श्रम रोकने के लिए नए नियम बना रही है। The government is making new rules to stop child labor.
(sarkaar baal shram rokne ke lie nae niyam banaa rahii hai।)
Register: Formal -- Mood: Indicative -- Aspect: Continuous -- Tense: Present -- Voice: Active
उस लेखक की बाल कविताएँ आज भी बच्चों को पसंद आती हैं। That writer's childlike poems are still liked by children today.
(us lekhak kii baal kavitaaen aaj bhii bachchon ko pasand aatii hain।)
Register: Literary -- Mood: Indicative -- Aspect: Habitual -- Tense: Present -- Voice: Active
काश उसकी बाल बुद्धि इतनी सरल न होती। If only his childlike understanding weren't so simple.
(kaash uskii baal buddhi itnii saral n hotii।)
Register: Literary -- Mood: Counterfactual -- Aspect: Habitual -- Voice: Active
इस संस्था ने बाल कल्याण के लिए कई योजनाएँ शुरू कीं। This organization started several schemes for child welfare.
(is sansthaa ne baal kalyaan ke lie kaii yojnaaen shuroo kiin।)
Register: Formal -- Mood: Indicative -- Aspect: Perfective -- Tense: Past -- Voice: Active
कृपया बाल अपराध से जुड़े मामलों को गंभीरता से लें। Please take cases related to juvenile crime seriously.
(kripyaa baal apraadh se jude maamlon ko gambhiirtaa se len।)
Register: Formal -- Mood: Imperative -- Voice: Active
यह पुस्तक बाल साहित्य की एक अनमोल कृति मानी जाती है। This book is considered a priceless work of children's literature.
(yah pustak baal saahity kii ek anmol kriti maanii jaatii hai।)
Register: Literary -- Mood: Indicative -- Aspect: Habitual -- Tense: Present -- Voice: Passive
Morphology
Noun
(sg.m.direct): बाल (baal)
(sg.m.oblique): बाल (baal)
(pl.m.direct): बाल (baal)
(pl.m.oblique): बालों (baalon)
Adjective (invariant)
invariant: बाल (baal)