The word "spirit" is often used to describe a wide range of intangible concepts, from emotions and attitudes to personality and character traits. Synonyms for spirit include soul, essence, aura, psyche, mentality, and disposition. These words all refer to the intangible aspects of a person or thing that make them unique and distinguishable from others. Other synonyms for spirit include courage, determination, resolve, and fortitude, which refer to a person's inner strength and willpower in the face of adversity. Alternatively, spirit can refer to a person's state of mind or mood, in which case, synonyms might include mood, vibe, or aura.