| essential elements(expression, fundamental, shorts, undercarriage) |
| fire and ice(expression, idiom, fundamental, shorts, undercarriage) |
| gravamen(fundamental, shorts, undercarriage) |
| guideline(rule, principle, policy) |
| habit(noun, practice, routine, convention, tradition) |
| heart(fundamental, shorts, undercarriage) |
| hit and miss(noun, expression, idiom, criterion) |
| institution(noun, practice, routine, convention, tradition) |
| integrant(fundamental, shorts, undercarriage) |
| lifeblood(fundamental, shorts, undercarriage) |
| name of game(expression, idiom, fundamental, shorts, undercarriage) |
| necessity(fundamental, shorts, undercarriage) |
| need(fundamental, shorts, undercarriage) |
| nitty gritty(expression, fundamental, shorts, undercarriage) |
| no-frills(fundamental, shorts, undercarriage) |
| no frills(expression, fundamental, shorts, undercarriage) |
| norm(noun, practice, routine, convention, tradition) |
| nub(fundamental, shorts, undercarriage) |
| nubbin(fundamental, shorts, undercarriage) |
| polestar(fundamental, shorts, undercarriage) |