Complementary goods. These goods are typically consumed or used together, as the use of one good complements the use of the other. Examples include peanut butter and jelly, and computers and software.
Term used they are docking.
When two shapes are joined together, it is called a composite shape.
Joining two words together to create a new word is called a "compound word".
The two wires that travel between two three way switches are called travelers.
Two quartets together are typically referred to as an octet.
complement
Law of demand
When two or more pulleys are used together it is called a compound pulley system.
It is term that is usually used for bring the completion of any thing with perfection.
Block and Tackle
Term used they are docking.
blck and tackle
The hand stitch used to sew two pieces of fabric together is called a "running stitch."
When two shapes are joined together, it is called a composite shape.
A duet Is what two people singing together is called.
you need both speed and direction which together is called velocity
The result of multiplying two numbers together is called the "product." For example, if you multiply 3 by 4, the product is 12. This term is commonly used in mathematics to refer to the outcome of multiplication.