Noun

• S: (n) teacher, instructor (a person whose occupation is teaching)
• S: (n) teacher (a personified abstraction that teaches) "books were his teachers"; "experience is a demanding teacher"
• direct hypernym / inherited hypernym / sister term
• S: (n) abstraction, abstract (a concept or idea not associated with any specific instance) "he loved her only in the abstract--not in person"
• S: (n) concept, conception, construct (an abstract or general idea inferred or derived from specific instances)
• S: (n) idea, thought (the content of cognition; the main thing you are thinking about) "it was not a good idea"; "the thought never entered my mind"
• S: (n) content, cognitive content, mental object (the sum or range of what has been perceived, discovered, or learned)
• S: (n) cognition, knowledge, noesis (the psychological result of perception and learning and reasoning)
• S: (n) psychological feature (a feature of the mental life of a living organism)
• S: (n) abstraction, abstract entity (a general concept formed by extracting common features from specific examples)
• S: (n) entity (that which is perceived or known or inferred to have its own distinct existence (living or nonliving))
• derivationally related form