कमर (kamar)

noun A body-part noun meaning 'waist' or 'lower back'; almost all its uses are literal, with one common idiomatic extension meaning to gear up for a task.
Sense 1 : waist / lower back (body part)
noun, feminine
Synonyms: कटि (kati, literary)
Frequency: high
Cultural Note: If you ask someone how they're doing after a long day of sitting or physical work, don't be surprised to hear कमर दर्द (kamar dard, 'back pain') come up constantly -- it's the go-to complaint in Delhi-NCR for everything from bad office chairs to overdoing yardwork.
Common Mistakes: 1) Learners often reach for 'back' as पीठ (piith) even when Hindi speakers would say कमर (kamar) -- कमर (kamar) covers the lower back/waist region and is what people actually say for common complaints like 'my back hurts.' 2) Aches here are usually expressed with दर्द होना (dard honaa) or a को (ko)-marked experiencer (कमर में दर्द होना, kamar men dard honaa, 'to have back pain'), not with a subject-verb structure like English 'my back hurts.'
Sample Sentences:
मेरी कमर में बहुत दर्द हो रहा है। My back is hurting a lot.
(merii kamar men bahut dard ho rahaa hai।)
Register: Casual -- Mood: Indicative -- Aspect: Continuous -- Tense: Present -- Voice: Active
पूरे दिन बैठे रहने से उसकी कमर अकड़ गई। From sitting the whole day, his back became stiff.
(poore din baithe rahne se uskii kamar akad gaii।)
Register: Neutral -- Mood: Indicative -- Aspect: Perfective -- Tense: Past -- Voice: Active
क्या तुम्हारी कमर अब भी दुखती है? Does your back still ache?
(kyaa tumhaarii kamar ab bhii dukhtii hai?)
Register: Casual -- Mood: Indicative -- Aspect: Habitual -- Tense: Present -- Voice: Active
डॉक्टर ने कहा कि मुझे कमर सीधी रखनी चाहिए। The doctor said I should keep my back straight.
(doktar ne kahaa ki mujhe kamar siidhii rakhnii chaahie।)
Register: Formal -- Mood: Indicative -- Aspect: Perfective -- Tense: Past -- Voice: Active
अगर तुम इतनी देर झुककर काम करोगे तो कमर में दर्द होगा ही। If you work bent over for so long, your back will definitely hurt.
(agar tum itnii der jhukkar kaam karoge to kamar men dard hogaa hii।)
Register: Casual -- Mood: Indicative -- Tense: Future -- Voice: Active
कमर सीधी करके बैठो, वरना बाद में तकलीफ होगी। Sit up straight, or you'll be in pain later.
(kamar siidhii karke baitho, varnaa baad men takliiph hogii।)
Register: Casual -- Mood: Imperative -- Voice: Active
अगर मेरी कमर इतनी न दुखती, तो मैं आज बगीचे में काम करता। If my back didn't hurt so much, I would have worked in the garden today.
(agar merii kamar itnii n dukhtii, to main aaj bagiiche men kaam kartaa।)
Register: Neutral -- Mood: Counterfactual -- Aspect: Habitual -- Voice: Active
बुढ़ापे में उसकी कमर झुक गई है। In old age, his back has become bent.
(budhaape men uskii kamar jhuk gaii hai।)
Register: Neutral -- Mood: Indicative -- Aspect: Perfective -- Tense: Present -- Voice: Active
भारी सामान उठाते वक्त कमर पर ज़्यादा ज़ोर मत डालो। Don't put too much strain on your back while lifting heavy luggage.
(bhaarii saamaan uthaate vakt kamar par zyaadaa zor mat daalo।)
Register: Casual -- Mood: Imperative -- Voice: Active
शायद योगा करने से मेरी कमर का दर्द कम हो जाए। Maybe doing yoga will reduce my back pain.
(shaayad yogaa karne se merii kamar kaa dard kam ho jaae।)
Register: Casual -- Mood: Subjunctive -- Voice: Active
ऑफिस की कुर्सी इतनी खराब है कि सबकी कमर दर्द करने लगी है। The office chair is so bad that everyone's back has started aching.
(ophis kii kursii itnii kharaab hai ki sabkii kamar dard karne lagii hai।)
Register: Casual -- Mood: Indicative -- Aspect: Perfective -- Tense: Present -- Voice: Active
Sense 2 : to prepare/gear up for a task (idiomatic, in कमर कसना)
noun, feminine Lives almost entirely inside the fixed expression कमर कसना (kamar kasnaa, 'to gird up one's waist' = to prepare resolutely for a task) or कमर बाँधना (kamar baandhnaa); it is not used as a free-standing abstract noun sense outside this idiom.
Frequency: medium
Cultural Note: The image is very physical: tightening a loose garment at the waist before hard labor or a journey, so कमर कस लो (kamar kas lo, 'gird up your waist' i.e. 'get ready, buckle down') is said before exams, big projects, or festival preparations -- much like English 'roll up your sleeves.'
Common Mistakes: 1) This sense only surfaces inside set phrases like कमर कसना (kamar kasnaa) or कमर बाँधना (kamar baandhnaa) -- learners sometimes try to use कमर (kamar) alone to mean 'resolve' or 'determination,' which doesn't work outside these idioms.
Sample Sentences:
अब परीक्षा नज़दीक है, कमर कस लो। The exam is near now, gird up and get ready.
(ab pariikshaa nazdiik hai, kamar kas lo।)
Register: Casual -- Mood: Imperative -- Voice: Active
इस बार हमने त्योहार की तैयारी के लिए कमर कस ली है। This time we have geared up for the festival preparations.
(is baar hamne tyohaar kii taiyaarii ke lie kamar kas lii hai।)
Register: Neutral -- Mood: Indicative -- Aspect: Perfective -- Tense: Present -- Voice: Active
सरकार ने महंगाई से लड़ने के लिए कमर कस ली है। The government has girded up to fight inflation.
(sarkaar ne mahangaaii se ladne ke lie kamar kas lii hai।)
Register: Formal -- Mood: Indicative -- Aspect: Perfective -- Tense: Present -- Voice: Active
जब तक तुम कमर नहीं कसोगे, यह प्रोजेक्ट पूरा नहीं होगा। Until you buckle down, this project won't get finished.
(jab tak tum kamar nahiin kasoge, yah projekt pooraa nahiin hogaa।)
Register: Casual -- Mood: Indicative -- Tense: Future -- Voice: Active
काश हमने पहले ही कमर कस ली होती, तो नतीजा कुछ और होता। If only we had geared up earlier, the result would have been different.
(kaash hamne pahle hii kamar kas lii hotii, to natiijaa kuchh aur hotaa।)
Register: Neutral -- Mood: Counterfactual -- Aspect: Perfective -- Voice: Active
टीम के हर खिलाड़ी ने फाइनल मैच के लिए कमर कस ली थी। Every player on the team had geared up for the final match.
(tiim ke har khilaadii ne phaainal maich ke lie kamar kas lii thii।)
Register: Neutral -- Mood: Indicative -- Aspect: Perfective -- Tense: Past -- Voice: Active
अगर तुम अपने सपने को सच करना चाहते हो, तो कमर कस लो। If you want to make your dream come true, then get ready to buckle down.
(agar tum apne sapne ko sach karnaa chaahte ho, to kamar kas lo।)
Register: Neutral -- Mood: Imperative -- Voice: Active
व्यापारियों ने नए साल के व्यापार के लिए कमर कस ली है। The merchants have girded themselves up for the new year's business.
(vyaapaariyon ne nae saal ke vyaapaar ke lie kamar kas lii hai।)
Register: Formal -- Mood: Indicative -- Aspect: Perfective -- Tense: Present -- Voice: Active
क्या तुमने अगली प्रतियोगिता के लिए कमर कस ली है? Have you geared up for the next competition?
(kyaa tumne aglii pratiyogitaa ke lie kamar kas lii hai?)
Register: Casual -- Mood: Indicative -- Aspect: Perfective -- Tense: Present -- Voice: Active
देश की सेना दुश्मन के हर हमले का जवाब देने के लिए कमर कसे खड़ी थी। The nation's army stood girded and ready to answer every enemy attack.
(desh kii senaa dushman ke har hamle kaa javaab dene ke lie kamar kase khadii thii।)
Register: Literary -- Mood: Indicative -- Aspect: Perfective -- Tense: Past -- Voice: Active
Morphology
Noun
(sg.f.direct): कमर (kamar)
(sg.f.oblique): कमर (kamar)
(pl.f.direct): कमरें (kamren)
(pl.f.oblique): कमरों (kamron)