gravel

n. small stones and pebbles (sometimes mixed with sand)

v. cover with gravel; embarrass, perplex

Gravel is rock that is of a certain particle size range. In geology, gravel is any loose rock that is at least two millimeters (2mm) in its largest dimension (about 1/12 of an inch) and no more than 75 millimeters (about 3 inches). Sometimes gravel is restricted to rock in the 2-4 millimeter range, with pebble being reserved for rock 4-75 millimeters (some say 64 millimeters). The next smaller size class in geology is sand, which is 0.063 mm to 2 mm in size. The next larger size is cobble, which is 75 (64) millimeters to 256 millimeters (about three to ten inches). One cubic foot (28.32 dm3) of gravel typically weighs about 100 pounds (45 kg) [1].
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Gravel /grav·el/ calculi occurring in small particles. grav·el n. Sandlike concretions of uric acid, calcium oxalate, and mineral salts formed in [more]Gravel - Community and Resources

Noun
1. rock fragments and pebbles
(synonym) crushed rock
(hypernym) rock, stone
(hyponym) ballast
Verb
1. cause annoyance in; disturb, especially by minor irritations; "Mosquitoes buzzing in my ear really bothers me"; "It irritates me that she never closes the door after she leaves"
(synonym) annoy, rag, get to, bother, get at, irritate, rile, nark, nettle, vex, chafe, devil
(hypernym) displease
(hyponym) get, get under one's skin
(verb-group) chafe
2. cover with gravel; "We gravelled the driveway"
(hypernym) cover
(derivation) crushed rock
3. be a mystery or bewildering to; "This beats me!"; "Got me--I don't know the answer!"; "a vexing problem"; "This question really stuck me"
(synonym) perplex, vex, stick, get, puzzle, mystify, baffle, beat, pose, bewilder, flummox, stupefy, nonplus, amaze, dumbfound
(hypernym) confuse, throw, fox, befuddle, fuddle, bedevil, confound, discombobulate
(hyponym) stump, mix up
Adjective
1. unpleasantly harsh or grating in sound; "a gravelly voice"
(synonym) grating, gravelly, rasping, raspy, rough
(similar) cacophonous, cacophonic

n. gravel, small stones and pebbles (sometimes mixed with sand)

n. gravel, small stones and pebbles (sometimes mixed with sand)