a passage built underground, for example to allow a road or railway/railroad to go through a hill, under a river, etc.
tunnel
a long hollow pipe made of metal, plastic, rubber, etc., through which liquids or gases move from one place to another
tube
a person whose job involves designing and building engines, machines, roads, bridges, etc
engineer
a long deep hole dug in the ground, for example for carrying away water
trench
a tall machine with a long arm, used to lift and move building materials and other heavy objects
crane
a powerful vehicle with a broad steel blade in front, used for moving earth or knocking down buildings
bulldozer
building material that is made by mixing together cement, sand, small stones and water
concrete
The simplest structure of bridge, it could be a log, a wood plank laid across the stream
beam bridge
thick strong metal rope used on ships, for supporting bridges, etc
cable
a curved structure that supports the weight of a bridge above it
arch bridge
Past participle of BREAK
Broken
Past participle of MAKE
Made
Past participle of BUILD
Built
Past participle of FEED
Fed
Past participle of HIDE
Hidden
Past participle of LOSE
Lost
