| record track record | the sum of recognized accomplishments, the lawyer has a good record, the track record shows that he will be a good president |
| track record | the fastest time ever recorded for a specific distance at a particular racetrack, the track record for the mile and a half at Belmont is minutes seconds held by Secretariat since |
| roller | a grounder that rolls along the infield |
| fast track | a rapid means of achieving a goal, they saw independence as the fast track to democracy, he took a fast track to the top of the corporate ladder, the company went off the fast track when the stock market dropped |
| track and field | participating in athletic sports performed on a running track or on the field associated with it |
track
running | the act of participating in an athletic competition involving running on a track |
| roller skating | skating on wheels |
roller tumbler
tumbler pigeon | pigeon that executes backward somersaults in flight or on the ground |
| roller | Old World bird that tumbles or rolls in flight, related to kingfishers |
European roller
Coracias garrulus | common European blue-and-green roller with a reddish-brown back |
| ground roller | Madagascan roller with terrestrial and crepuscular habits that feeds on e.g. insects and worms |
leaf roller
leafoller | moth whose larvae form nests by rolling and tying leaves with spun silk |
ball bearing
needle bearing
roller bearing | bearings containing small metal balls |
branch line
spur track
spur | a railway line connected to a trunk line |
| cinder track | a racetrack paved with fine cinders |
curler
hair curler
roller crimper | a mechanical device consisting of a cylindrical tube around which the hair is wound to curl it, a woman with her head full of curlers is not a pretty sight |
| dirt track | a racetrack that is not paved |
dumb bomb
gravity bomb | a bomb that falls because of gravity and is not guided to a target |
| garden roller | heavy cast-iron cylinder used to flatten lawns |
| gravimeter gravity meter | a measuring instrument for measuring variations in the gravitational field of the earth |
| half track | a track that goes around only rear wheels |
| half track | a motor vehicle propelled by half tracks, frequently used by the military |
| laugh track | prerecorded laughter added to the soundtrack of a radio or television show |
| paint roller | a roller that has an absorbent surface used for spreading paint |
racetrack
racecourse
raceway track | a course over which races are run |
railroad track
railroad railway | a line of track providing a runway for wheels, he walked along the railroad track |
rock bit
roller bit | a drill bit that has hardened rotating rollers |
| roller | a cylinder that revolves |
| roller | a small wheel without spokes (as on a roller skate) |
| roller bandage | bandage consisting of a strip of sterile fabric (of variable width) rolled into a cylinder to facilitate application |
| roller blind | a window shade that rolls up out of the way |
roller coaster
big dipper
chute-thehute | elevated railway in an amusement park (usually with sharp curves and steep inclines) |
| roller skate | a shoe with pairs of rollers fixed to the sole |
| roller towel | a towel with the ends sewn together, hung on a roller |
steamroller
road roller | vehicle equipped with heavy wide smooth rollers for compacting roads and pavements |
track
cart track
cartroad | any road or path affording passage especially a rough one |
track rail rails
runway | a bar or pair of parallel bars of rolled steel making the railway along which railroad cars or other vehicles can roll |
| track | a pair of parallel rails providing a runway for wheels |
| track | a groove on a phonograph recording |
| track data track | (computer science) one of the circular magnetic paths on a magnetic disk that serve as a guide for writing and reading data |
track caterpillar track
caterpillar tread | an endless metal belt on which tracked vehicles move over the ground |
tramline
tramway
streetcar track | the track on which trams or streetcars run |
graveness
gravity
sobriety soberness
somberness
sombreness | a manner that is serious and solemn |
| specific gravity | the density of a substance relative to the density of water |
| inside track | a favorable position in a competition, the boss's son had the inside track for that job |
lead
track
trail | evidence pointing to a possible solution, the police are following a promising lead, the trail led straight to the perpetrator |
theory of gravitation
theory of gravity
gravitational theory
Newton's theory of gravitation | (physics) the theory that any two particles of matter attract one another with a force directly proportional to the product of their masses and inversely proportional to the square of the distance between them |
| cut track | a distinct selection of music from a recording or a compact disc, he played the first cut on the cd, the title track of the album |
gravity wave
gravitation wave | (physics) a wave that is hypothesized to propagate gravity and to travel at the speed of light |
roller
roll rolling wave | a long heavy sea wave as it advances towards the shore |