| observance | (also: proceeding, rite, ceremonial) | आचार |
| observance | (also: address, ceremony, custom, etiquette, institute, method, mode, nature, order, ordinance) | रीति |
| observance | (also: attention, care, consideration, contemplation, deliberation, ear, eye, hearing, heed, idea) | ध्यान |
| observance | (also: prosecution, pursuit) | अनुसरण |
| observance | (also: act, action, affair, business, concern, deed, employment, engagement, fact, function) | काम |
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| observable | | विचार योग्य |
| observable | | काबिल ए गौर |
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| observer | (also: holder, retainer) | रखने वाला |
| observer | | देखनेवाला |
| observer | (also: executor) | करने वाला |
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| observation | (also: adage, agreement, aphorism, appointment, capitulation, compact, declaration, dictum, engagement, expression) | वचन |
| observation | (also: criticism, examination) | आलोचना |
| observation | (also: belief, caution, concept, conception, consideration, contemplation, deliberation, determination, discretion, discrimination) | विचार |
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| observant | | ध्यान रखने वाला |
| observant | (also: alert, attentive, aware, canny, careful, cautious, circumspect, diligent, discreet, economical) | सावधान |
| observant | (also: loyal, meek, obedient, orderly, submissive) | आज्ञाकारी |