清掃 (seisō) means “cleaning” | MotiTan Japanese Dictionary

More examples

入居前に、部屋の清掃を業者に依頼しました。nyū kyo mae ni heya no sei sō o gyō sha ni i rai shi ma shi ta

Before moving in, I asked a company to clean the room.

It refers to the organized process of removing dirt and unwanted material from a space so that the space becomes clean.

掃除sōji: The everyday activity of removing dirt from a room or other space.

場所にたまったごみや汚れを取り除き、衛生的な状態にすること。ba sho ni ta ma tta go mi ya yogo re o to ri nozo ki ei sei teki na jō tai ni su ru ko to

清掃 (seisō) is formed from the Sino-Japanese elements 清 (sei, "clean") and 掃 (sō, "sweep"), combining the ideas of cleanliness and sweeping away.

清掃 (seisō) has a more formal tone than 掃除 (sōji) in many everyday contexts and commonly occurs in facility notices, maintenance services, and job titles.