tip-up

adj [attrib 作定语] (of seats) that can be raised to allow people to pass easily, eg in a cinema （指座位）可翻起的（如戏院中的）.

tin-tack, tincture, tinder, tinder-box, tine, ting, ting-a-ling, tinge, tingle, tinker, tinkle, tinny, tinpot, tinsel, tinselled, tinsmith, tint, tiny, tip, tip-off, tipper lorry (also `tipper truck), tippet, tipple, tippler, tipsily, tipsiness, tipster, tipsy, tiptoe, tiptop, TIR, tirade, tire, tired, tiredness, tireless, tirelessly, tiresome, tiresomely, tiring,