Choose the word that is opposite in meaning to the given word-
Blemish
(a)Preserve
(b)Purify
(c)Defect
(d)Tarnish

Hint: Read the given word and understand what it means. Now go through the options, recall what they mean and choose the one that means the opposite or is closest to meaning the opposite of the given word.

Complete answer: An antonym is any word that is exactly the opposite in meaning to another word, in the same linguistic bracket. They express things that are opposite in meaning to each other. For example, the words ‘far’ and ‘near’ are antonyms of each other, as they convey opposite meanings. Blemish means a small mark or flaw which spoils the appearance of something. Some synonyms for blemish are blot, blotch bruise, freckle, wart, smudge, etc. Some antonyms for blemish are blank, perfection, advantage, decoration, strength, decoration, etc. For eg. It had a blemish, like a currant jelly, on its chin; and was a thirsty child. We will have a look at each option carefully and know their meaning and figure out the answer through it:
Option ‘a’ preserves maintain (something) in its original or existing state. For eg. He wanted to preserve her and protect her innocence.
Option ‘b’ purify means to remove contaminants from. For eg. She believed she could purify herself from constant prayer.
Option 'c' defect means a shortcoming, perfection, or lack. For eg., Vanity and pride were his two worst character defects.
Option ‘d’ tarnish means lose or cause to lose lustre, especially as a result of exposure to air or moisture. For eg. The scandal tarnished his reputation.
After analysing each option carefully and knowing their meaning, we came to the point that
option 'b' is the correct answer.
So the word opposite to the word “blemish” is “purify”.

Note: Some frequently used synonyms of Blemish are streak, spot, fleck, dot, blot, stain, smear, patch and antonym is enhancement.