research association; research society / group of enthusiasts (as may be found in schools, colleges, etc)

building material, construction materials

(Internet slang, vulgar) the period of relaxation and focus after ejaculation; post-nut clarity

(anatomy) uvula

restoration of rights / rehabilitation / reinstatement

restore rights / rehabilitate / reinstate

old dog

the barking of a dog, or the sound thereof

various folk dance types in Tōhoku region and Nīgata prefecture

sexually transmitted infection examination