आठ (aath)

numeral The number eight; a single sense used as a numeral/adjective before nouns and as a noun when referring to the number itself.
Sense 1 : eight (number)
numeral
Frequency: high
Cultural Note: आठ (aath) shows up constantly in daily life -- टाइम आठ बजे है (taaim aath baje hai, 'the time is eight o'clock') for telling time, or ऊपर से आठवीं मंज़िल (oopar se aathviin manzil, 'the eighth floor from the top') style references. Note the ordinal आठवाँ (aathvaan, eighth) is a related but separate lemma built from this root.
Common Mistakes: 1) आठ (aath) is invariant -- it does not change form before masculine or feminine nouns, unlike ordinal or some other number-derived words: आठ लड़के (aath ladke, eight boys) and आठ लड़कियाँ (aath ladkiyaan, eight girls) both use the same form. 2) Learners sometimes confuse आठ (aath, eight) with आठवाँ (aathvaan, eighth) -- the ordinal needs the separate -वाँ suffix, it is not formed by adding anything to आठ (aath) directly in casual speech patterns learners might guess at.
Sample Sentences:
अभी आठ बजे हैं। It is eight o'clock right now.
(abhii aath baje hain।)
Register: Casual -- Mood: Indicative -- Tense: Present -- Voice: Active
मेरी ट्रेन आठ बजे छूटेगी। My train will leave at eight o'clock.
(merii tren aath baje chhootegii।)
Register: Neutral -- Mood: Indicative -- Tense: Future -- Voice: Active
क्लास में आठ बच्चे थे। There were eight children in the class.
(klaas men aath bachche the।)
Register: Neutral -- Mood: Indicative -- Tense: Past -- Voice: Active
अगर मेरे पास आठ हज़ार रुपये होते, तो मैं यह फ़ोन खरीद लेता। If I had eight thousand rupees, I would buy this phone.
(agar mere paas aath hazaar rupye hote, to main yah fon khariid letaa।)
Register: Casual -- Mood: Counterfactual -- Aspect: Habitual -- Voice: Active
कृपया आठ कॉपियाँ प्रिंट कर दीजिए। Please print eight copies.
(kripyaa aath kopiyaan print kar diijie।)
Register: Formal -- Mood: Imperative -- Voice: Active
यह इमारत ज़मीन से आठ मंज़िल ऊँची है। This building is eight floors high from the ground.
(yah imaarat zamiin se aath manzil oonchii hai।)
Register: Neutral -- Mood: Indicative -- Aspect: Habitual -- Tense: Present -- Voice: Active
हर हफ़्ते हम आठ घंटे काम करते हैं। Every week we work eight hours.
(har hafte ham aath ghante kaam karte hain।)
Register: Casual -- Mood: Indicative -- Aspect: Habitual -- Tense: Present -- Voice: Active
शायद यहाँ आठ लोग बैठ सकें। Perhaps eight people could sit here.
(shaayad yahaan aath log baith saken।)
Register: Neutral -- Mood: Subjunctive -- Voice: Active
पार्टी के लिए आठ केक ऑर्डर किए गए। Eight cakes were ordered for the party.
(paartii ke lie aath kek ordar kie gae।)
Register: Neutral -- Mood: Indicative -- Aspect: Perfective -- Tense: Past -- Voice: Passive
उसने आठ साल तक विदेश में पढ़ाई की है। He has studied abroad for eight years.
(usne aath saal tak videsh men padhaaii kii hai।)
Register: Formal -- Mood: Indicative -- Aspect: Perfective -- Tense: Past -- Voice: Active