Art: In Shakespeare's time, "art" could refer to any skill, craft, or accomplishment. It was not limited to the visual arts as it is today. For example, in "The Taming of the Shrew," Petruchio refers to his plan to tame Katherina as an "art."
Conceit: In Shakespeare's time, "conceit" could mean imagination, a clever thought, or an elaborate metaphor. For example, in "Romeo and Juliet," Romeo describes Juliet as a "conceit" of his imagination.
Fortune: In Shakespeare's time, "fortune" could refer to luck, chance, or the forces that control human destiny. For example, in "Julius Caesar," Brutus speaks of "the fickle goddess, Fortune."
Gentleman: In Shakespeare's time, "gentleman" could refer to a well-born man, a man of good character, or a man who behaves politely. For example, in "Hamlet," Polonius advises his son Laertes to be a "gentleman."
Humor: In Shakespeare's time, "humor" could refer to the fluids that were believed to control human behavior, personality, and emotions. It was also used to refer to a person's mood or temperament. For example, in "The Merry Wives of Windsor," Falstaff is described as a man of "many humors."
Love: In Shakespeare's time, "love" could refer to a wide range of emotions, including romantic love, friendship, loyalty, and affection. For example, in "A Midsummer Night's Dream," Helena says she "loves" Demetrius, but she also loves Hermia as a friend.
Nature: In Shakespeare's time, "nature" could refer to the physical world, the human condition, or the essential qualities of something. For example, in "The Tempest," Prospero speaks of "the nature of our guilt."
Passion: In Shakespeare's time, "passion" could refer to a strong emotion, a desire, or a suffering. For example, in " Othello," Othello is consumed by "passion" for Desdemona.
Reason: In Shakespeare's time, "reason" could refer to the faculty of thought and judgment, or to a logical argument. For example, in "Hamlet," Hamlet struggles to decide whether to act based on "reason" or on his emotions.
Virtue: In Shakespeare's time, "virtue" could refer to moral excellence, a particular moral quality, or a commendable action. For example, in "The Merchant of Venice," Portia speaks of "the quality of mercy" as a "virtue."