Like freezing requirements. Definitions of words change over time to suit a winning faction. This was especially dramatic in the last century or so. So for the Analects, it's something like making sure words mean what they meant when the land was run well.

"If names are not right then speech does not accord with things; if speech is not in accord with things, then affairs cannot be successful; when affairs are not successful, li and music do not flourish; when li and music do not flourish, then sanctions and punishments miss their mark; when sanctions and punishments miss their mark, the people have no place to set their hands and feet.

Therefore, when a junzi gives things names, they may be properly spoken of, and what is said may be properly enacted. With regard to speech, the junzi permits no carelessness.”