The words pic, pick sound the same but have different meanings and spellings. Why do pic, pick sound the same even though they are completely different words?
The answer is simple: pic, pick are homophones of the English language.
Slang A photograph.
Slang A movie.
To select from a group: The best swimmer was picked.
To select or cull.
To gather in; harvest: They were picking cotton.
To gather the harvest from: picked the field in one day.
Definitions from The American Heritage® Dictionary of the English Language, 4th Edition and Wordnik.
Homophones (literally "same sound") are usually defined as words that share the same pronunciation, regardless of how they are spelled.