Wet means moist; whereas, Whet means to sharpen.

Weather refers to the state of the atmosphere. Whether means if. Wether means castrated ram (male sheep).

Yew is a kind of tree. Ewe means a female sheep, especially when full grown. You is a pronoun used to refer to the one being addressed.

Wit means intelligence, mental sharpness or keen sense of humor; whereas, Whit means a small particle.

Gamble is a game of chance, game of betting; whereas, Gambol means to playfully frisk or dance about.

Coarse means rough; whereas, Course means direction taken or pursued; line of action; each of successive division of meal.

Genteel means excessively fashionable, well-dressed, graceful, elegant, well-bred.

Gilt means covered with thin layer of gold; whereas, Guilt means fact/condition/blame/feeling of having done wrong.

Site refers to the local position or situation, Sight relates to view, scene or vision and

Gait refers to the manner of walking; whereas, a gate is a movable barrier which closes an opening in a wall, etc.

To Confirm means to ratify; to establish the truth of something. To Conform means to comply; to make one thing like another.

Rain refers to precipitation (water that comes down from clouds).