(noun) An especially close and trusted friend.
"Your Worst Enemy Could Be Your Best Friend & Your Best Friend Your Worst Enemy."
"A friend in need is a friend indeed!"
"When you're in jail, a good friend will be trying to bail you out. A best friend will be in the cell next to you saying, 'Damn, that was fun'."
"A Brother may not be a Friend, but a Friend will always be a Brother."
"The mirror is my best friend because when I cry it never laughs."
"Outside of a dog, a book is man's best friend. Inside of a dog it's too dark to read."
"My Best Friend is a person who will give me a book I have not read."
"A friend tells you what you want to hear; a best friend tells you the truth."
"No one can take the place of a friend, no one."
"No one is completely unhappy at the failure of his best friend."
"The best friend is the man who in wishing me well wishes it for my sake."
"With a best friend, I can build an empire beside."