Improve the bracketed part of the sentence.

The other shirt (will cost) you more.

Lover of nature is called nature lover or Green Panther.

Autophile is a person who loves being alone.

Dendrophile is a person who loves trees and forests.

Petrichor is an earthy smell that follows a rainfall.

The one word substitute for 'a drawing on transparent paper' is Transparency.

In the given sentence,

Despite is the preposition. It does not take 'of' after it. Therefore, the grammar mistake in the given sentence is 'of'.

Hence, the correct sentence is  "She went to gym despite her illness."

Friend is a person with whom one has a bond of mutual affection, typically one exclusive of sexual or family relations.

Other names for friend are mate, bosom friend, classmate, buddy, ally,...

Special Friend - Stone.

Example ::

He is my special friend - He is my stone.

A person, One who possesses many talents is called a Versatile.

It means multiskilled, adaptable, flexible, ...

Stalk means the main stem of a herbaceous plant.

Synonyms for Stalk are - Shoot, trunk, cane, bent, reed, straw, bine, stock,...

A colon is used to connect two sentences when the second sentence expands, illustrates, explains, summarizes, or sharpens the first. Both sentences should be complete, and their content should be very closely related.

Example:

This girl has two favorite hobbies: watching movies and seeing how long she can hold her breathe.