SEAL

[verb] [T]If you want jam to keep for a long time, you must seal the jars well.This floor has just been sealed (= covered with a special liquid to protect it), so don't walk on it!He sealed the envelope (down) (= stuck it down) and put a stamp on it. [T or M]Seal the parcel (up) (= Fasten it) with sticky tape. [T or M]Fry the meat quickly in hot oil to seal the flavour in (= preserve all its flavour). [M]Two more bombs have been discovered since the police sealed off the area/building (= closed and started to guard all the entrances to prevent anyone going in or out). [M]If you seal something such as an agreement, you make it more certain or approve it formally.The two leaders sealed their agreement with a handshake/by shaking hands.If your fate is sealed, nothing can stop some unpleasant thing happening to you.From the time she was introduced to the drug ring her fate was sealed.