A male servant, slave, assistant, or employee
A son of any age.
A male of any age, particularly one rather younger than the speaker.
A younger such worker.
A non-white male servant regardless of age, particularly as a form of address.
Any non-white male, regardless of age.
A male child or adolescent, as distinguished from infants or adults.
A male (tree, gene, etc).
A young male.
A former low rank of various armed services; a holder of this rank.
Heroin.
A male animal, especially, in affectionate address, a male dog.
To act as a boy (in allusion to the former practice of boys acting women's parts on the stage).
Exclamation of surprise, pleasure or longing.
A female companion to a master (a man with control, authority or ownership)
The other woman in an extramarital relationship, generally including sexual relations
A woman, specifically one with great control, authority or ownership
a woman regarded with love and devotion; a sweetheart
A married woman; a wife
A female teacher
A dominatrix
A woman well skilled in anything, or having the mastery over it
To act or take the role of a mistress.
Of a woman: to master; to learn or develop to a high degree of proficiency.