অর্থ : Provide evidence for. Stand as proof of. Show by one's behavior, attitude, or external attributes.
							উদাহরণ : 
							His high fever attested to his illness.
							The buildings in Rome manifest a high level of architectural sophistication.
							This decision demonstrates his sense of fairness.
							
সমার্থক : certify, demonstrate, evidence, manifest
অর্থ : Authenticate, affirm to be true, genuine, or correct, as in an official capacity.
							উদাহরণ : 
							I attest this signature.
							
অর্থ : Give testimony in a court of law.
সমার্থক : bear witness, take the stand, testify
অর্থ : Establish or verify the usage of.
							উদাহরণ : 
							This word is not attested until 1993.