3.2 tract, struct

Front

Extract

Back

To pull out by force; to remove something from a larger whole.

Front

Instruct

Back

To build knowledge; to teach or provide information.

Front

Distract

Back

To pull a person's attention in another direction; to divert focus.

Front

Obstruction

Back

Something that blocks the way of things being created or built; an impediment.

Front

Substructure

Back

The base, support, or foundation of a building; the underlying structure.

Front

Protract

Back

To extend in time; to prolong.

Front

Retraction

Back

The act of taking back or withdrawing something.

Front

Traction

Back

The grip or friction between a surface and an object moving on it.

Front

Attract

Back

To draw towards; to pull in.

Front

Construct

Back

To build or form by putting together parts.