Synonyms of the word

brainiac

• n. (slang, sometimes derogatory) A very intelligent and usually studious, erudite person.

brain

• n. The control center of the central nervous system of an animal located in the skull which is responsible…
• n. (informal) An intelligent person.
• n. (in the plural) Intellect.
• n. By analogy with a human brain, the part of a machine or computer that performs calculations.
• n. (slang, vulgar) oral sex.
• v. (transitive) To dash out the brains of; to kill by smashing the skull.
• v. (transitive, slang) To strike (someone) on the head.
• v. (transitive, figuratively) To destroy; to put an end to.
• v. (transitive) To conceive in the mind; to understand.

genius

• n. (eulogistic) Someone possessing extraordinary intelligence or skill; especially somebody who has demonstrated…
• n. Extraordinary mental capacity.
• n. Inspiration, a mental leap, an extraordinary creative process.
• n. (Roman mythology) The guardian spirit of a place or person.
• n. A way of thinking, optimizing one's capacity for learning and understanding.
• adj. (informal) ingenious, very clever, or original.

intellect

• n. the faculty of thinking, judging, abstract reasoning, and conceptual understanding; the cognitive faculty…
• n. the capacity of that faculty (in a particular person) (uncountable).
• n. a person who has that faculty to a great degree.

intellectual

• adj. Belonging to, or performed by, the intellect; mental or cognitive; as, intellectual powers, activities,…
• adj. Endowed with intellect; having the power of understanding; having capacity for the higher forms of knowledge…
• adj. Suitable for exercising the intellect; formed by, and existing for, the intellect alone; perceived by…
• adj. Relating to the understanding; treating of the mind; as, intellectual philosophy, sometimes called "mental"…
• adj. (archaic, poetic) Spiritual.
• n. An intelligent, learned person, especially one who discourses about learned matters.
• n. (archaic) The intellect or understanding; mental powers or faculties.

mastermind

• n. A person with an extraordinary intellect or skill that is markedly superior to his or her peers.
• n. A person responsible for the highest level of planning and execution of a major operation.
• v. To act in the role of mastermind.