Collocations
Collocations
Explore English words that belong together, with meanings, examples, and sentence practice. Browse by CEFR level or pattern, and add collocations to your deck for regular review.
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Showing 4417–4512 of 7378 phrases
Adjective + noun(35)
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reddish brown
a brown color with a noticeable red tint
refractive index
the ratio of light's speed in a vacuum to its speed in a material
regional anesthesia
loss of sensation in a particular area of the body produced by anesthetic treatment
regular hexagon
a six-sided shape with equal sides and equal angles
regular pentagon
a five-sided shape with equal sides and equal interior angles
regular polygon
a polygon whose sides and angles are all equal
regulatory agency
a government body that oversees compliance with rules in a particular area
relational database
a database that organizes information into tables with defined relationships
relative density
the density of a substance compared with that of a reference substance
relativistic mass
a measure of mass that depends on an object's motion relative to an observer
reliable source
a person or resource that can be trusted to provide accurate information
religious belief
a conviction associated with a religion or supernatural power
religious mysticism
religious belief or practice centered on direct communion with an ultimate reality
religious rite
a formal ceremony carried out according to a religion's traditions
remittent fever
a fever that varies in intensity without returning fully to normal
reproductive organ
an organ involved in producing offspring
residential area
a district used mainly for people's homes
residual oil
heavy oil remaining after lighter petroleum fractions have been removed
resonant circuit
an electrical circuit that responds especially strongly at a particular oscillation frequency
respiratory tract
the passages that carry air into and out of the body
responsible party
The person or organization that caused or carried out a particular action or event.
restrictive clause
a clause that narrows the meaning of the noun phrase it modifies
retail price
the price charged when a product is sold to its final customer
retired person
a person who has stopped their regular working career
reversible process
a process that can be made to pass through the same states in the opposite order
rhetorical question
a question asked to make a point rather than obtain an answer
rich man
a man who has a large amount of money or valuable property
ripe olive
an olive harvested after reaching maturity and prepared for eating
risky venture
an undertaking with a significant chance of loss or failure
ritual dance
a dance performed as part of a religious ceremony
rogue elephant
an aggressive wild elephant living apart from its herd
rolling hitch
a knot used to attach a rope to a pole or another rope
rote learning
memorizing information by repeated practice rather than understanding
rotten borough
a historical parliamentary constituency with very few voters and disproportionate representation
roundabout way
an indirect route that takes longer than the most direct one
Noun + noun(49)
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recording label
the name or brand under which a company produces musical recordings
recording studio
a specially equipped room or building for making sound recordings
recovery room
a hospital room where patients are monitored immediately after surgery
recreation room
a room set aside for informal games and leisure activities
recycling bin
a container for collecting materials intended to be recycled
redirect examination
further questioning of a witness by the original calling party after cross-examination
reduction division
cell division that reduces the number of chromosomes in the resulting cells
redundancy check
an error-checking method that uses additional information to detect mistakes
refectory table
a long, narrow dining table traditionally supported by trestles
reflection factor
the proportion of incoming radiant energy that a surface reflects
refugee camp
a place providing temporary shelter for people forced to leave their homes
registration number
the identifying number displayed on a vehicle's license plate
relativity theory
the physical theory describing relationships among space, time, motion, and gravity
relaxation time
the characteristic time for a disturbed system to return toward equilibrium
relief pitcher
a baseball pitcher who enters after another pitcher has started the game
repertory company
a theater company that keeps several plays ready to perform
replacement cost
the current amount needed to replace an asset with one of similar usefulness
requisition form
an official document used to request supplies or services
research colloquium
an academic meeting where research results are presented and discussed
resistance thermometer
a thermometer that measures temperature through changes in electrical resistance
restriction enzyme
an enzyme that cuts DNA at particular recognition sites
restriction fragment
a piece of DNA produced by cutting it with a restriction enzyme
retention basin
a constructed basin that stores collected water rather than immediately releasing it downstream
rhubarb pie
a pie filled with chopped rhubarb sweetened with sugar
rib cage
the bony framework of the chest formed by the ribs
rice cooker
an appliance that cooks rice automatically by heating water or steam
ridge tile
a shaped roof tile used to cover the ridge where two slopes meet
rift valley
a steep-sided valley formed by movement along faults in Earth's crust
ring vaccination
vaccination focused on contacts around an identified infection case
risk taker
a person willing to face possible loss or danger for a hoped-for benefit
riveting machine
a machine that fastens pieces together using rivets
roach clip
a small gripping tool used to hold the end of a cannabis cigarette
road construction
the work of building roads
road mender
a worker who repairs roads
road rage
aggressive or violent behavior by a driver in traffic
road runner
a person who competes in running races held on roads
robbery suspect
a person believed possibly to have committed a robbery
rock outcrop
an exposed part of a rock formation projecting above nearby ground
rocket scientist
an engineer or scientist who designs and tests rockets
rodeo rider
a performer who demonstrates riding and related skills at a rodeo
roentgen ray
an X-ray, especially in older scientific terminology
roller skate
a shoe fitted with wheels for moving across a hard surface
romper suit
a one-piece play garment for a young child with short lower legs
room temperature
the usual temperature inside an occupied room
rope yarn
the individual strands used to make a rope
rubber cement
a flexible adhesive containing rubber dissolved in a liquid solvent
rubbish heap
a pile of discarded waste
rudder blade
the flat vertical part of a rudder that turns a vessel
rugby football
a form of football played with an oval ball under rugby rules
Verb + adverb(4)
Verb + preposition/particle(8)
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refer to
to consult a source for information
reflect on
to think carefully about something
rely on
to depend on someone or something with trust
reside in
to live in a particular place
respond to
to react or reply to something
result in
to cause or lead to a particular outcome
revolve around
to move in an orbit around something
ripped into
attacked or criticized someone or something very harshly