What is a language?

When one thinks about language, it really is a miracle. This is because it is a "set of words, or sounds, that collectively is understood by a whole social system that each word, or sound, or even spelling is the same meaning for all. That alone is a miracle---evolutionists, please explain HOW this happens so easily among various social groups, various languages? Especially by the ones under 5 years of age, as being the easiest ones to learn language?

Language is a way of conferring information from one entity to another, usually through audible sounds, body motions, or written symbols have agreed upon meanings.

It's a way people communicate and convey meaning. Most are spoken, but some are only written.

A system of sounds shared by a group of people who agree on the meaning of the sounds.