1. 1. The act of assembling.
   2. The state of being assembled.
2. A group of persons gathered together for a common reason, as for a legislative, religious, educational, or social purpose.
3. Assembly The lower house of the legislature in certain U.S. states.
4. 1. The putting together of manufactured parts to make a completed product, such as a machine or electronic circuit.
   2. A set of parts so assembled.
5. A signal by bugle or drum for troops to come together in formation.
6. Computer Science. The automatic translation of symbolic code into machine code.
7. Computer Science. An assembly language.

The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.