What is the true definition of instruction?

in any places there's a simple instructions that we encounter and must follow but instead of following it,we ignore it most of us,many people died cause some of them are not obeying the rules,in a simple mistake,one life has lost,so we must put more attention to the instruction,that we may see,there's going wrong if we obey it,so for you what is the true definition of instruction to us?What is the true definition of instruction?
instruct=to impart knowledge~to teach~advise~give notice to


an instruction is the knowledge imparted


hope this helpsWhat is the true definition of instruction?
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