Grass vs. Weed

Difference Between Grass and Weed
Grassnoun
Any plant of the family Poaceae, characterized by leaves that arise from nodes in the stem and leaf bases that wrap around the stem, especially those grown as ground cover rather than for grain.
Weednoun
(countable) Any plant regarded as unwanted at the place where, and at the time when it is growing.
If it isn't in a straight line or marked with a label, it's a weed.Grassnoun
(countable) Various plants not in family Poaceae that resemble grasses.
Weednoun
Short for duckweed.
Grassnoun
(uncountable) A lawn.
Weednoun
Underbrush; low shrubs.
Grassnoun
Marijuana.
Weednoun
A drug or the like made from the leaves of a plant.
Grassnoun
An informer, police informer; one who betrays a group (of criminals, etc) to the authorities.
Weednoun
Cannabis.
Grassnoun
Sharp, closely spaced discontinuities in the trace of a cathode-ray tube, produced by random interference.
Weednoun
Tobacco.
Grassnoun
Noise on an A-scope or similar type of radar display.
Weednoun
A cigar.
Grassnoun
The season of fresh grass; spring.
Weednoun
(countable) A weak horse, which is therefore unfit to breed from.
Grassnoun
That which is transitory.
Weednoun
A puny person; one who has little physical strength.
Grassverb
(transitive) To lay out on the grass; to knock down (an opponent etc.).
Weednoun
Something unprofitable or troublesome; anything useless.
Grassverb
To act as a grass or informer, to betray; to report on (criminals etc) to the authorities.
Weednoun
(archaic) A garment or piece of clothing.
Grassverb
(transitive) To cover with grass or with turf.
Weednoun
(archaic) Clothing collectively; clothes, dress.
Grassverb
(transitive) To expose, as flax, on the grass for bleaching, etc.
Weednoun
(archaic) An article of dress worn in token of grief; a mourning garment or badge.
Grassverb
(transitive) To bring to the grass or ground; to land.
to grass a fishWeednoun
(Female) mourning apparel.
He wore a weed on his hat.Grassnoun
narrow-leaved green herbage: grown as lawns; used as pasture for grazing animals; cut and dried as hay
Weednoun
A sudden illness or relapse, often attended with fever, which befalls those who are about to give birth, are giving birth, or have recently given birth or miscarried or aborted.
Grassnoun
German writer of novels and poetry and plays (born 1927)
Weedverb
To remove unwanted vegetation from a cultivated area.
I weeded my flower bed.Grassnoun
animal food for browsing or grazing
Weedverb
simple past tense and past participle of wee
Grassnoun
street names for marijuana
Weednoun
any plant that crowds out cultivated plants
Grassverb
shoot down, of birds
Weednoun
street names for marijuana
Grassverb
cover with grass;
The owners decided to grass their propertyWeedverb
clear of weeds;
weed the gardenGrassverb
spread out clothes on the grass to let it dry and bleach
Grassverb
cover with grass
Grassverb
feed with grass
Grassverb
give away information about somebody;
He told on his classmate who had cheated on the exam