A very high number, too big to count. very large number or quantity.

convert process or facility to be operated by largely automatic equipment.

Fact of increasing; amount something grows by. become or make greater in size or degree.

assembled or made from whatever is available, and so unlikely to be of highest quality. Action of rubbing your skin when itchy. score or mark surface of something with sharp or pointed object.

give or hand over something in exchange for money.

Not of the same kind; unlike other things.

operated by largely automatic equipment. To use machines to do tasks instead of people.

extending or moving uniformly in one direction only. in straight line. part of something that is not curved.

thing chosen. Two or more of several choices. buy or sell option on.

Option on a device that can be changed, e.g. sound. To decide upon or choose something.

made more modern or up to date. To make more current or modern.

occupation, profession, or work of teacher. To help someone learn or do something.

In a way not requiring control by a person.

decide price of.

arrange to receive something regularly by paying in advance.