clutter

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. A confused or disordered state or collection; a jumble: sorted through the clutter in the attic.
2. n. A confused noise; a clatter.
3. v. To fill or spread over in a disorderly manner: Boxes cluttered the garage.
4. v. To make disorderly or hard to use by filling or covering with objects: I cluttered up my desk with old memos.
5. v. To run or move with bustle and confusion.
6. v. To make a clatter.

Century Dictionary and Cyclopedia

1. To clot; coagulate.
2. To become clotted or coagulated.
3. n. A heap or collection of things lying in confusion; confusion; litter; disorder.
4. To crowd together in disorder; fill with things in confusion: often with up: as, to clutter the things all together; to clutter up the house.
5. To make a bustle or disturbance.
6. n. Confused noise; bustle; clatter; turmoil.
7. To jumble words together in speaking, clipping syllables and dropping consonants.

Wiktionary

1. n. a confused disordered jumble of things
2. n. background echos, from clouds etc, on a radar screen
3. v. to fill something with clutter
4. v. obsolete, intransitive To clot or coagulate, like blood.

GNU Webster's 1913

1. n. A confused collection; hence, confusion; disorder.
2. n. Clatter; confused noise.
3. v. To crowd together in disorder; to fill or cover with things in disorder; to throw into disorder; to disarrange.
4. v. To make a confused noise; to bustle.
5. v. obsolete To clot or coagulate, as blood.

WordNet 3.0

1. n. unwanted echoes that interfere with the observation of signals on a radar screen
2. v. fill a space in a disorderly way
3. n. a confused multitude of things