read, reed, read and red

read: (v) to examine and grasp, interpret and discern,  to utter or render aloud, to predict, to study, to learn, to indicate, to show 

reed: (n) a tall, slender-leaved plant of the grass family; a thing or person resembling the plant

read: (adj) informed, learning, having knowledge, to take something for granted (v) past tense of read

red: (adj) of a color at the end of the spectrum next to orange and opposite violet; (n) color or pigment, a red thing or person

Once I read about a red reed and I'd like to read about it again.

aloud and allowed

aloud: (adv) audibly, not silent; loudly
allowed: (v) admit, give necessary time or opportunity for

You are allowed to speak aloud.

sore, soar

sore: (adj) painful, aching; (n) a painful place; (adv) extremely or severely 

soar: (v) to rise or fly; (n) the act of soaring

I am sore from the soar.

here, hear, hair and hare

here (adverb) in, at, or this place or position; used when introducing someone or something; used to attract attention; indicating one's presence in role call

hear (v) to perceive with the ear the sound made by someone or something

hair (n) any of the fine threadlike strands growing from the skin of humans, mammals, and some other animals

hare (n) a fast-running, long-eared mammal that resembles a large rabbit, having long hind legs and occurring typically in grassland or open woodland.

Hear me and look over here at this hare with red hair!

a lot

a lot: two words, not one!

(pronoun) a large number or amount

(adv) a great deal

(n) a particular group, collection, set

A lot of people think "a lot" is one word. It is not.

compliment and complement

compliment: (n) a polite expression of praise or admiration; (v) to congratulate or praise

complement: (n) a thing that completes or brings to perfection; something required to make a group complete; (v) to add in a way that enhances or improves; make perfect

Your compliments about my dress complement my feelings about our date.

neither and either

either: used to indicate a similarity or link with a statement just made.

neither: not either; not the one nor the other 

He said I could have either one, but I wanted neither.