english
                    
                    
                    
                        1
                           general:: 
                              noun two things the same  ADJ.  matching a matching pair of vases | identical PREP.  in a/the ~ Answer one question in each pair. | in ~s These candlesticks only come in pairs. | ~ of a pair of shoes PHRASES  one of a pair one of a pair of crystal vases people who are connected  ADJ.  inseparable | good | happy (= a newly married couple) | odd They make an odd pair. VERB + PAIR  match The pair were matched for age. | make I thought they would make a good pair so I arranged for them to meet. PREP.  in a/the ~ The students worked in pairs. male and female animal  ADJ.  breeding PAIR + VERB  breed, mate PREP.  ~ of a pair of swans nesting by the river
                        
                        
 
                        
                            Oxford Collocations Dictionary
                        
                        
                    
                    
                        2
                           general:: 
                            pair 
two things of the same type that you use together. Also used about two people who do something together or who you often see together: 
• a pair of shoes • a pair of socks • Winners will receive a pair of tickets for the show. • The pair were arrested six days after the killing. • They're a funny pair! • The British pair will be playing in the final on Saturday. 
a couple (of something) 
two things of the same type, or a very small number of things: 
• There were a couple of empty seats at the table. • Do you have any stamps? I just need a couple. 
couple 
noun [ countable ] two people who are married or having a sexual relationship: 
• a married couple • The couple met at university. 
twins 
noun [ plural ] two children who were born on the same day to the same mother: 
• The twins look very alike. • identical twins 
duo 
noun [ countable ] two people who perform together or who are often seen together: 
• a comedy duo 
duet 
noun [ countable ] a piece of music written for two people to play: 
• They played a duet by Brahms. 
twice 
two times adverb: 
• The group meets twice a week. • She sneezed twice.
                        
                        
 
                        
                            Longman-Thesaurus
                        
                        
                    
                    
                        3
                           general:: 
                            noun
male and female:  
He had a pair of rabbits.
verb
get them together:  
We tried to pair them at the party.
noun
couple:  
They make a lovely pair.
                        
                        
 
                        
                            Simple Definitions
                        
                        
                    
                    
                        4
                           general:: 
                            In addition to the idiom beginning with PAIR,  Also see  SHOW ONE'S (A CLEAN PAIR OF) HEELS.
                        
                        
 
                        
                            American Heritage Idioms
                        
                        
                    
                    
                        5
                           general:: 
                            pair up 
 
 to join together temporarily with another person in order to do something 
• Everyone should pair up for the next dance., pair sb off 
 [ M ] 
 to introduce two people to each other so that they will start a romantic relationship 
• I managed to pair my best friend Sue off with Mike., pair off 
 
 to begin a romantic or sexual relationship with someone 
• All my friends seem to be pairing off and getting married.
• Ravens nest very early in the spring and they pair off in the late autumn.
                        
                        
 
                        
                            Cambridge-Phrasal Verbs