Clocks and Mug

Clocks noun - European weed naturalized in southwestern United States and Mexico having reddish decumbent stems with small fernlike leaves and small deep reddish-lavender flowers followed by slender fruits that stick straight up; often grown for forage.

Mug and clocks are semantically related. In some cases you can use "Mug" instead a noun "Clocks".

Mug noun - A round vessel equipped with a handle and designed for drinking.

Clocks and mug are semantically related. Sometimes you can replace term "Clocks" with "Mug", this nouns are similar.