I

if

A conditional statement that executes its statement block if its expression evaluates totrue.

implicit

An operator that defines an implicit conversion.

in

The operator between a type and an IEnumerable in a foreachstatement.

int

A four-byte signed integral datatype.

interface

A contract that specifies the members aclass or structcan implement to receive generic services for that type.

internal

An access modifier that indicates a type or type member is accessible only to other types in the same assembly.

is

A relational operator that evaluates to true if the left operand's type matches, is derived from, or implements the type specified by the right operand.