First come, first served.

Understand the thought

Meaning in plain English

People are attended to in the order they arrive or apply. This describes one allocation rule, whose fairness depends on access, urgency and the purpose of the service.

What the words are saying

The saying makes arrival order the basis for deciding who receives attention or an available item. It can create a clear queue and reduce uncertainty when everyone understands the rule. But the order may reflect differences in information, mobility or available time rather than equal opportunity. Some services also need to prioritise urgency or specific requirements instead. The proverb should therefore describe a chosen arrangement rather than declare the only fair way to allocate every resource. State the rule clearly, consider who can use it, and make any necessary exceptions understandable instead of assuming that timing settles every concern.

Everyday example

A club offers spare materials in sign-up order but reserves an accessible application method so members who cannot attend in person can join the same process.

When to use it

Use it to describe a transparent arrival-order rule for a suitable allocation.

Agent-assisted editorial interpretation. This explains the words; it does not by itself verify their author or earliest origin.