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mnemonic

adjective that refers to memory or relating to memory

didactic

adjective that means intended to instruct. Can be used negatively to describe someone who teaches or moralizes excessively.

erudite

adjective that means learned or scholarly

judicious

exercising good judgment

immemorial

adjective that refers to things whose existence, literally or figuratively, outlives memory.

polymath

someone who really knows a lot in many different fields

obliterate

to wipe out from memory

empirical

adjective that means guided by practical experience or observation rather than by precepts or theory

obfuscate

verb that means to make something confusing or difficult to understand; often done intentionally to hide the truth

ratiocination

process of using a logical, carefully reasoned thinking process

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