Hops and Shuttles

Hops noun - Twining perennials having cordate leaves and flowers arranged in conelike spikes; the dried flowers of this plant are used in brewing to add the characteristic bitter taste to beer.

Shuttles and hops are semantically related. In some cases you can use "Shuttles" instead a noun "Hops".

Hops and shuttles are semantically related. Sometimes you can use "Hops" instead a noun "Shuttles".