1. BURNISH (VERB): (चमकाना): polish up 

Synonyms: shine, brighten

Antonyms: dull

Example Sentence:

To burnish copper, I would probably use a drill with a pad attached to the end.

2. DIPLOMATIC (ADJECTIVE): (राजनयिक): tactful

Synonyms: sensitive, subtle

Antonyms: indiscreet

Example Sentence:

He tried his best to be diplomatic.

3. ABATEMENT (NOUN): (न्यूनीकरन): subsiding

Synonyms: lessening, decrease

Antonyms: intensification, increase

Example Sentence:

The new trend showed no signs of abatement.

4. AMELIORATE (VERB): (सुधरना): improve

Synonyms: better, enhance

Antonyms: worsen

Example Sentence:

Steps have been taken to ameliorate his situation.

5. FORMIDABLE (ADJECTIVE): (डराना): intimidating

Synonyms: forbidding, redoubtable

Antonyms: comforting

Example Sentence:

His opponent was certainly a formidable one.

6. ENDURE (NOUN): (टिकना): last

Synonyms: live, live on

Antonyms: fade

Example Sentence:

These cities have endured through time.

7. EMBOLDEN (VERB): (प्रोत्साहित करना): encourage

Synonyms: hearten, strengthen

Antonyms: dishearten

Example Sentence:

Emboldened by the claret, he pressed his knee against hers.

8. SLAM (VERB): (टकरा जाना): hit

Synonyms: strike, ram

Antonyms: miss

Example Sentence:

The car mounted the pavement, slamming into a lamp post.

9. BLEAK (ADJECTIVE): (सर्द): cold

Synonyms: keen, raw

Antonyms: warm

Example Sentence:

It was a bleak midwinter’s day.

10. UNLEASH (VERB): (खोलना): release

Synonyms: free, loose

Antonyms: restrain

Example Sentence:

They dig up badger setts and unleash terriers into them.