underneath

adverb

1. 1

   Below; in a place beneath.

   I can't take my sweater off: I amn't wearing anything else on underneath.

   connected with it underneath, you see a very fine hair-spring.

2. 2

   On the underside or lower face.

   No insects exhibit, like them, what may be termed four net-work eyes. It is very easy to perceive them in looking at the animal from above, and then examining it underneath

preposition

1. 1

   Under, below, beneath.

   Underneath the water, all was calm.

   We flew underneath the bridge.

   We looked underneath the table.

2. 2

   Under the control or power of.

   There was little freedom underneath the Nazi jackboot.

adjective

1. 1

   Under, lower.

   You can have the underneath bunk.

   The mess in the kitchen was one thing. The way the place smelled was another—some sort of chemistry-lab stink on top, some other smell underneath it. He was afraid the underneath smell might be blood.

noun

1. 1

   The bottom of something.

   The underneath of the aircraft was painted blue.

   Nawnim yelped, heaved away, struck his head on the underneath of the bed, and rolled into view bawling.

   It was a monolith of a golden color, opening at its base on to a cavern: its underneath was hollowed out by water.

   I have been looking for an underneath I couldn't see.

2. 2

   A background radio sound track played during a specific announcement or program.

   The underneath is music from the latest album by ….

Forms

plural

underneaths