a labor worker does all sortse of things. in the 1800's most labor workers worked in factorys, or were slaves.
The concrete noun 'worker' is a form of the abstract noun work, a word for a concept.
Labor
A worker bee.
A strike.
the wage system
Unicorns are mythological creatures and, thus, do not exist. According to legend, unicorns will usually live alone, but will also sometimes form small groups. Scientifically, the collective noun for a group of unicorns is known as a blessing.
The possessive form of the noun worker is worker's.Example: I found a worker's ID badge in the parking lot.
butterflies and fluffy unicorns
yea no worker under 15
No. He was a a migrant worker and community/labor activist.
Department of Labor