| nondiscriminatory(adjective, open, free, fit, friendly) |
| not posted(expression, adjective, free, friendly, appropriate) |
| nowhere(adjective, simple, clean, plain, ordinary) |
| nuts and bolts(expression, adjective, idiom, reasonable, sensible) |
| odds-on(adjective, reasonable, fair, acceptable, expected) |
| of assistance(expression, good, valuable, practical, helpful) |
| of service(expression, good, valuable, practical, helpful) |
| of use(expression, good, valuable, practical, helpful) |
| on deck(expression, adjective, open, free, friendly) |
| on tap(expression, adjective, open, free, fit) |
| on the verge of(expression, idiom, reasonable, fair, acceptable) |
| open-door(adjective, open, free, fit, friendly) |
| operatable |
| orderly(adjective, reasonable, sensible, useful, sober) |
| ostensible(adjective, reasonable, fair, acceptable, expected) |
| overcomable |
| palpable |
| permitted(adjective, open, free, fit, friendly) |
| piece of cake(expression, idiom, reasonable, possible, feasible) |
| plausible(adjective, reasonable, fair, acceptable, expected) |