puzzle@npr.org Liane and Will, 'refrigerator-car' is the only such expression that can qualify as familiar. The list of possible combinations fitting /^r..r...r...r..r$/ are mostly ungramatical, but a few are amusing. -- bill ** refrigerator car ** rears northerner retry northerner roars northerner reared precursor reared preserver redraw precursor redraw preserver regret precursor regret preserver roared precursor roared preserver roarer precursor roarer preserver rearing recorder rearing reformer rearing reporter rearing reserver rearing retarder rearing returner rearing reverser recruit recorder recruit reformer recruit reporter recruit reserver recruit retarder recruit returner recruit reverser redrawn recorder redrawn reformer redrawn reporter redrawn reserver redrawn retarder redrawn returner redrawn reverser redress recorder redress reformer redress reporter redress reserver redress retarder redress returner redress reverser refrain recorder refrain reformer refrain reporter refrain reserver refrain retarder refrain returner refrain reverser refresh recorder refresh reformer refresh reporter refresh reserver refresh retarder refresh returner refresh reverser regress recorder regress reformer regress reporter regress reserver regress retarder regress returner regress reverser regrets recorder regrets reformer regrets reporter regrets reserver regrets retarder regrets returner regrets reverser regroup recorder regroup reformer regroup reporter regroup reserver regroup retarder regroup returner regroup reverser reorder recorder reorder reformer reorder reporter reorder reserver reorder retarder reorder returner reorder reverser repress recorder repress reformer repress reporter repress reserver repress retarder repress returner repress reverser reprint recorder reprint reformer reprint reporter reprint reserver reprint retarder reprint returner reprint reverser reproof recorder reproof reformer reproof reporter reproof reserver reproof retarder reproof returner reproof reverser reprove recorder reprove reformer reprove reporter reprove reserver reprove retarder reprove returner reprove reverser retrace recorder retrace reformer retrace reporter retrace reserver retrace retarder retrace returner retrace reverser retract recorder retract reformer retract reporter retract reserver retract retarder retract returner retract reverser retrain recorder retrain reformer retrain reporter retrain reserver retrain retarder retrain returner retrain reverser retreat recorder retreat reformer retreat reporter retreat reserver retreat retarder retreat returner retreat reverser retried recorder retried reformer retried reporter retried reserver retried retarder retried returner retried reverser retrier recorder retrier reformer retrier reporter retrier reserver retrier retarder retrier returner retrier reverser retries recorder retries reformer retries reporter retries reserver retries retarder retries returner retries reverser rewrite recorder rewrite reformer rewrite reporter rewrite reserver rewrite retarder rewrite returner rewrite reverser roaring recorder roaring reformer roaring reporter roaring reserver roaring retarder roaring returner roaring reverser reprover alerter reprover angrier reprover averrer reprover awarder reprover barrier reprover boarder reprover carrier reprover charger reprover charmer reprover charter reprover coarser reprover courier reprover courser reprover courter reprover fiercer reprover fourier reprover hairier reprover harrier reprover hoarder reprover learner reprover mourner reprover quarter reprover reorder reprover retrier reprover scorner reprover sharper reprover shirker reprover shorter reprover smarter reprover sorrier reprover sparser reprover starter reprover stirrer reprover terrier reprover twirler reprover usurper reprover warrior reprover wearier reprover worrier refrigerator air refrigerator bar refrigerator car refrigerator cdr refrigerator cur refrigerator ear refrigerator err refrigerator far refrigerator fir refrigerator for refrigerator fur refrigerator her refrigerator jar refrigerator mar refrigerator nor refrigerator oar refrigerator our refrigerator par refrigerator per refrigerator sir refrigerator tar refrigerator war