Weed (Noun)

A black band worn by a man (on the arm or hat) as a sign of mourning.

Nouns denoting man-made objects.

He wore a weed on his arm to show respect for his deceased grandfather.
The old man's hat was adorned with a weed, a symbol of his grief.
After the funeral, he put on a weed as a sign of mourning for his friend.
The tradition of wearing a weed as a sign of bereavement was still observed by some men in the community.
As he walked behind the coffin, he adjusted the weed on his sleeve, a somber reminder of his loss.

Street names for marijuana.

Nouns denoting man-made objects.

The dealer was caught selling weed to minors on the corner of 5th and Main.
She asked her friend if he had any weed to smoke at the party tonight.
The police found a stash of weed hidden in the suspect's backpack.
He was arrested for possession of weed after being pulled over by the cops.
The smell of weed wafted through the air as they walked through the festival grounds.

Any plant that crowds out cultivated plants.

Nouns denoting plants.

Dandelions are considered a weed by many gardeners because they crowd out desirable flowers.
Thistles can grow in almost any type of soil and are often regarded as a nuisance weed in fields.
A stray plant can become a weed if it begins to take water and nutrients from more desirable plants.
Nasturtium is an invasive plant species in many regions, but its unique shape has allowed some people to value it rather than labeling it as a mere weed.
Experts classified clover as a weed for several decades until researchers learned that the white, three-leaved herb enriched the surrounding soil for agricultural growth.