¹ deep adjective

• having a large distance to the bottom from the surface or highest point —often used figuratively
• going far inward from the outside or the front edge of something
• located far inside something—usually + in or within —often used figuratively

² deep adverb

• far into or below the surface of something —often used figuratively
• far into or inside something
• at a specified measurement downward, inward, or backward

³ deep noun