Synonym: logical system, system of logic. Similar words: logical, logically, illogical, biological, theological, ecological, ideological, archeological. Meaning: ['lɑdʒɪk /'lɒd-] 
n. 1. the branch of philosophy that analyzes inference 2. reasoned and reasonable judgment 3. the principles that guide reasoning within a given field or situation 4. a system of reasoning 5. the system of operations performed by a computer that underlies the machine's representation of logical operations.
n. 1. the branch of philosophy that analyzes inference 2. reasoned and reasonable judgment 3. the principles that guide reasoning within a given field or situation 4. a system of reasoning 5. the system of operations performed by a computer that underlies the machine's representation of logical operations. 
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211. I was vexed that I could not understand his logic.
212. The trivium consisted of grammar, logic and rhetoric, the quadrivium of arithmetic, geometry, astronomy and music.
More similar words: logical, logically, illogical, biological, theological, ecological, ideological, archeological, technological, psychological, terminological, ornithological, apologize, apologist, psychologist, ornithologist, tragic, allergic, regicide, lethargic, strategic, log, paraplegic, strategically, dialog, apology, theology, geology, biology, backlog.