assembly line

American  

noun

• assembly lines
  plural

1. an arrangement of machines, tools, and workers in which a product is assembled by having each perform a specific, successive operation on an incomplete unit as it passes by in a series of stages organized in a direct line.

---

assembly line British  

noun

1. a sequence of machines, tools, operations, workers, etc, in a factory, arranged so that at each stage a further process is carried out

---

assembly line Cultural  

1. A line of factory workers and equipment along which a product being assembled passes consecutively from operation to operation until completed.

---

Discover More

Assembly lines are found in many industries but are particularly associated with automobile manufacturing.

Other Word Forms

Noun Inflected Forms

• assembly lines
  plural

---

Etymology

Origin of assembly line

An Americanism dating back to 1910–15

---

Example Sentences

See Examples For:

assembly line

The itinerary included multiple demonstrations of Chinese technological muscle, including an automated deep-water container port in Shanghai and the assembly line of jet maker Comac.

From The Wall Street Journal ● Sep. 22, 2026

It can be used to automate an assembly line, to compensate for a gap in the user’s skills, or to augment and sharpen individual creativity.

From The Wall Street Journal ● Sep. 18, 2026

Parton could have limited her tracks to farmers, coal miners, swing shifters, assembly line workers and other laborers whom country music constantly lionizes, and no one would have complained.

From Los Angeles Times ● Aug. 26, 2026

At the end of the assembly line, more humans emerge.

From BBC ● Aug. 24, 2026

No reason for an assembly line, for workers.

From "Landscape with Invisible Hand" by M.T. Anderson

Random Word

Spin the wheel and learn a new word!

---

Related Words

• production line

---