HinKhoj Dictionary

Obstinate - Eradicable
Obstreperous - Docile
Obstruct - Abet
Obstruction - Furtherance
Obtain - Forfeit
Obtrude - Confine
Obtrusive - Diffident
Obtuse - Sensitive

Moral (मॉरल) adjective - नैतिक/ उचित/ न्यायसंगत/ सदाचारी/ धार्मिक
It's her moral obligation to tell the police what she knows. (नैतिक जिम्मेदारी)
She's a very moral woman. (धार्मिक)
It is not part of a teacher's job to make a moral judgement. (नैतिक निर्णय)

Morale (मरैल) noun - हौसला/ मनोबल
A couple of victories would improve the team's morale enormously.

Businessman/ businesswoman - Business executive
Chairwoman/ Chairman - Chair or chairperson
Female lawyer/ Male lawyer - Lawyer
Policeman/ policewoman - Police officer
Repairman/ Repairwoman - Repairer, technician
Steward/ Stewardess - Flight attendant
Salesman/ Saleswoman - Salesperson
Brother/ Sister - Sibling

हाथ पैर मारना - To make efforts
हाँ में हाँ मिलाना - To ditto
सर पीटना - To lament
सर फिरना - To turn crazy
जैसे को तैसा - Tit for tat
दादी नानी की कहानी - A cock and bull story
टेढ़ी खीर - A hard nut to crack
पासा पलट देना - To turn table
इंतज़ार में रहना - Lie in wait for
मुँह चुराना - To fight sigh of

The earlier you start working on something, the earlier you will see results.
आप जितनी जल्दी किसी काम पर काम करना शुरू करेंगे, उतनी जल्दी आपको परिणाम दिखेंगे।