n.
1.a mathematical element that when added to another number yields the same number
2.a quantity of no importance
3.a person of no influence
4.a secret method of writing
5.a message written in a secret code cypher v.
1.convert ordinary language into code
2.make a mathematical calculation or computation
Idiom of the Day
play on/upon (something)
to cause an effect on something, to influence something
The company played on the feelings of loneliness of some people to get them to buy more products.