When people or animals creep somewhere, they move quietly and slowly.

If something creeps somewhere, it moves very slowly.

If something creeps in or creeps back, it begins to occur or becomes part of something without people realizing or without them wanting it.

If a rate or number creeps up to a higher level, it gradually reaches that level.

If you describe someone as a creep, you mean that you dislike them a great deal, especially because they are insincere and flatter people.

If someone or something gives you the creeps, they make you feel very nervous or frightened.