com·bi·na·tion 
/ˌkɑ:mbəˈneɪʃən/ noun
plural com·bi·na·tions /ˌkɑ:mbəˈneɪʃən/ noun 1 [count] : a result or product of combining two or more things or people
▪ Water is a combination of hydrogen and oxygen. ▪ The car's interior is available in various/different color combinations. ▪ It's an unusual combination. ▪ A combination of factors led to her decision. ▪ The milkshakes come in chocolate, strawberry, and vanilla, or any combination of these. ▪ He has the right combination of talent and experience. ▪ Together on one team they are a winning combination. [=they work, perform, etc., very well together] 2 : an act of combining two or more things [count] ▪ The combination of these two chemicals can cause an explosion. [noncount] ▪ The drugs should not be taken in combination. [=should not be taken together] ▪ It can be used by itself or in combination with [=together with] our other products. 3 [count] : a particular series of numbers or letters that is used to open a lock
▪ What is the combination to the safe? 4 — used to describe something that can be used in more than one way ▪ The tool is a combination jackknife and bottle opener. ▪ The book is a combination dictionary and thesaurus.
▪ Water is a combination of hydrogen and oxygen. ▪ The car's interior is available in various/different color combinations. ▪ It's an unusual combination. ▪ A combination of factors led to her decision. ▪ The milkshakes come in chocolate, strawberry, and vanilla, or any combination of these. ▪ He has the right combination of talent and experience. ▪ Together on one team they are a winning combination. [=they work, perform, etc., very well together]
▪ What is the combination to the safe?
