| injunction |
| institution(noun, practice, routine, custom, habit) |
| lore(noun, custom, ritual, institution) |
| mandate |
| manner(noun, style, rule, practice, system) |
| martial law |
| matter of course(noun, expression, idiom, style, rule) |
| method(noun, style, rule, practice, system) |
| mode(noun, style, rule, practice, system) |
| mold(noun, style, rule, practice, system) |
| mores(noun, style, rule, practice, method) |
| observance(noun, style, rule, practice, system) |
| observation(noun, style, rule, practice, system) |
| pattern(noun, style, rule, practice, system) |
| performance(noun, style, rule, practice, system) |
| policy(noun, style, rule, practice, system) |
| practice(noun, style, rule, system, method) |
| praxis(noun, style, rule, practice, system) |
| precedent(noun, style, rule, practice, system) |
| protocol(noun, custom) |