tunnel-borer

A massive tunnel-borer slowly carves through solid rock underground.

Definition

1. Noun:
   • A machine for excavating tunnels: A "tunnel-borer" is a large, specialized machine used to dig tunnels through soil or rock, often employed in the construction of subways, roads, and underground passages.

Usage Examples

• (A machine that excavates tunnels.)
• (A mechanical device for tunnel excavation.)

Advanced Usage

• "tunnel-boring machine (TBM)": A more formal technical term for a tunnel-borer.

  • The tunnel-borer, also known as a tunnel-boring machine, was assembled on-site. (The equipment is referred to by its technical name.)

• "to operate a tunnel-borer": to control or manage the machine during tunnel construction.

  • Engineers must be specially trained to operate a tunnel-borer safely. (To control the excavation equipment.)

Variants and Related Words

• Tunnel (n): an underground passage.

  • The tunnel was completed using a tunnel-borer. (The underground passage.)

• Bore (v): to make a hole by drilling or digging.

  • The machine can bore through granite. (To drill or excavate.)

Synonyms

• Excavator: a machine used for digging (broader term, not specific to tunnels).
• Drilling machine: a device for making holes (less specific to tunnel construction).

Phrasal Verbs

• Bore through: to dig or drill through something.
  • The tunnel-borer began to bore through the mountain. (To excavate through a solid mass.)

Related Idioms

• "to bore someone to death": to cause extreme boredom (unrelated to tunnel-borer, but uses "bore").
  • His long lecture bored me to death. (Not connected to tunnel-borer, but illustrates the verb "bore".)