Vocabulary Words
retina
B2noun
The thin layer of cells at the back of the eyeball where light is converted into neural signals sent to the brain.
retreat
B2noun, verb
(of a glacier) To shrink back due to generally warmer temperatures. (+16 more)
revival
B2noun
A Christian religious meeting held to inspire active members of a church body or to gain new converts. (+14 more)
revolution
B2noun
A political upheaval in a government or nation state characterized by great change. (+8 more)
adjective, noun
, Chopin's 'Revolutionary Etude' Op. 10 no. 12 (+7 more)
rhinoceros
B2noun
Any of several large herbivorous pachyderms native to Africa and Asia of the five extant species in the three extant genera in the family Rhinocerotidae, with thick, gray skin and one or two horns on their snouts.
rhyme
B2noun, verb
(followed by with) Of a word, to be pronounced identically with another from the vowel in its stressed syllable to the end. (+15 more)
riddle
B2noun, verb
A board with a row of pins, set zigzag, between which wire is drawn to straighten it. (+13 more)