(chemistry) a chemical compound

thing (concrete, tangible) / (law) a corporeal object

chemical combination

observe

observation

goblin, ghost; an apparition

change in society, climate, or condition, transformation, variety / variation / declension / (sumo) a step to one side during the tachiai, the initial charge at the start of a sumo match; a sidestep

to change, to vary

(inorganic chemistry) an inorganic compound

(organic chemistry) an organic compound