Dictionary

All Word
radius Noun a circular region whose area is indicated by the length of its radius
radius Noun a straight line from the center to the perimeter of a circle (or from the center to the surface of a sphere)
racing skate Noun an ice skate with a long blade
road roller Noun vehicle equipped with heavy wide smooth rollers for compacting roads and pavements
rotary converter Noun electrical converter consisting of a synchronous machine that converts alternating to direct current or vice versa
rooms Noun apartment consisting of a series of connected rooms used as a living unit (as in a hotel)
rear light Noun lamp (usually red) mounted at the rear of a motor vehicle
rear lamp Noun lamp (usually red) mounted at the rear of a motor vehicle
research rocket Noun a rocket fired for test purposes
rainfly Noun flap consisting of a piece of canvas that can be drawn back to provide entrance to a tent
railroad tie Noun one of the cross braces that support the rails on a railway track
rails Noun a bar or pair of parallel bars of rolled steel making the railway along which railroad cars or other vehicles can roll
railroad train Noun public transport provided by a line of railway cars coupled together and drawn by a locomotive
ropeway Noun a conveyance that transports passengers or freight in carriers suspended from cables and supported by a series of towers
roadside Noun edge of a way or road or path
racing yacht Noun an expensive vessel propelled by sail or power and used for cruising or racing
railway yard Noun an area having a network of railway tracks and sidings for storage and maintenance of cars and engines
railyard Noun an area having a network of railway tracks and sidings for storage and maintenance of cars and engines
reclusiveness Noun a disposition to prefer seclusion or isolation
restlessness Noun inability to rest or relax or be still
restlessness Noun the quality of being ceaselessly moving or active
restlessness Noun a feeling of agitation expressed in continual motion
restlessness Noun a lack of patience
restiveness Noun characterized by nervousness and quickness to take fright
restiveness Noun the anxious feeling you have when you have the jitters
restrictiveness Noun a lack of permissiveness or indulgence and a tendency to confine behavior within certain specified limits
restrictiveness Noun a grammatical qualification that makes the meaning more specific (`red hat' has a more specific meaning than `hat')
rigor Noun excessive sternness
rigor Noun something hard to endure
rigor Noun the quality of being valid and rigorous
rigour Noun excessive sternness
rigour Noun something hard to endure
rigour Noun the quality of being valid and rigorous
rigorousness Noun excessive sternness
rigorousness Noun something hard to endure
rigourousness Noun excessive sternness
rigourousness Noun something hard to endure
readiness Noun prompt willingness
readiness Noun a natural effortlessness
readiness Noun (psychology) being temporarily ready to respond in a particular way
readiness Noun the state of having been made ready or prepared for use or action (especially military action)
receptiveness Noun willingness or readiness to receive, especially impressions or ideas
receptivity Noun willingness or readiness to receive (especially impressions or ideas)
reluctance Noun a certain degree of unwillingness
reluctance Noun (physics) opposition to magnetic flux (analogous to electric resistance)
risibility Noun a disposition to laugh
reserve Noun the trait of being uncommunicative
reserve Noun formality and propriety of manner
reserve Noun armed forces that are not on active duty but can be called in an emergency
reserve Noun a district that is reserved for particular purpose