What is the meaning of Assembler?

A program that reads source code written in assembly language and produces executable machine code, possibly together with information needed by linkers, debuggers and other tools.

Assembly language.

One who assembles items.

A nanodevice capable of assembling nanodevices, possibly including copies of itself, according to a plan.

assembler (a tool that reads source code written in assembly language and produces executable machine code)

assembler, assembly (a programming language whose mnemonic instructions directly correspond to machine instructions for a particular processor)

to assemble

Alternative spelling of asembler

assembly language

an assembler (program that converts assembly language into machine code)

Source: wiktionary.org