Two-wheeler and Taxis

Two-wheeler noun - A two-wheeled vehicle that is propelled by the use of pedals and steered through the use of handlebars.

Taxis and two-wheeler are semantically related. In some cases you can use "Taxis" instead a noun phrase "Two-wheeler".

Taxis noun - A locomotor response toward or away from an external stimulus by a motile (and usually simple) organism.

Two-wheeler and taxis are semantically related. Sometimes you can use "Two-wheeler" instead a noun "Taxis".