under cover of letter nounder dunder disccussionunder discussionunder duressunder earmarkunder false pretensesunder fireunder flowunder hatchesunder his majesty's patronageunder lock and keyunder my hand and sealunder no circumstancesunder no obligationunder oathunder obligationunder offerunder one's beltunder one's breathunder one's hatunder one's noseunder one's wingunder plain coverunder pledge of secrecyunder protestunder sailunder sealunder separate coverunder someone's thumbunder suspicionunder the care ofunder the charge ofunder the circumstancesunder the counterunder the cover of nightunder the delusion thatunder the hammerunder the plowunder the pretext ofunder the roseunder the shadow ofunder the sodunder the sununder the tableunder the weatherunder wayunderachieveunderactunderage
