1. [ noun ] a rational motive for a belief or action
Synonyms: ground

"the reason that war was declared" "the grounds for their declaration"

Related terms: rational_motive score occasion why establish
2. [ noun ] an explanation of the cause of some phenomenon

"the reason a steady state was never reached was that the back pressure built up too slowly"

Related terms: explanation
3. [ noun ] the capacity for rational thought or inference or discrimination
Synonyms: intellect understanding

"we are told that man is endowed with reason and capable of distinguishing good from evil"

Related terms: faculty
4. [ verb ] decide by reasoning; draw or come to a conclusion
Synonyms: conclude reason_out

"We reasoned that it was cheaper to rent than to buy a house"

Related terms: think find deduce generalize induce gather deduce syllogize decision reasoner
5. [ verb ] present reasons and arguments
Synonyms: argue
Related terms: present defend re-argue expostulate argument argumentation rationality
6. [ noun ] a justification for something existing or happening
Synonyms: cause grounds

"he had no cause to complain" "they had good reason to rejoice"

Related terms: justification cause
7. [ verb ] think logically

"The children must learn to reason"

Related terms: think calculate speculate categorize rationalise_away theorize theorize ratiocinate
8. [ noun ] (psychology,psychiatry) the state of having good sense and sound judgment
Synonyms: reasonableness rationality

"his rationality may have been impaired" "he had to rely less on reason than on rousing their emotions"

Related terms: sanity argue
9. [ noun ] Last name, frequency rank in the U.S. is 8996
10. [ noun ] a fact that logically justifies some premise or conclusion

"there is reason to believe he is lying"

Related terms: fact indication contraindication
Similar spelling:   resin