to be concerned about; to be interested in; to be bothered by; to have a problem with

(computer science) an algorithm

rubber (pliable material derived from the sap of the rubber tree) / short for 消しゴム (keshi-gomu, “rubber (eraser)”) / short for ヘアゴム (hea-gomu, “hair tie, scrunchie”) / (slang) condom

Qom (a city in Iran)

(idiomatic) Alternative form of 気が気でない

(idiomatic) Alternative form of 気が気でない

(idiomatic) very anxious, very worried, feeling uneasy; can't help but be worried

Kyūjitai form of 濁点: voicing mark: the mark added to か (ka) to produce が (ga).

(anatomy) epiglottis

会厭: epiglottis