noun Download 🔗Share Someone who sleeps. Examples : "The kindergarten teacher gently woke the sleepers after nap time. " person human Chat with AIVocabulary GamePractice Reading
noun Download 🔗Share That which lies dormant, as a law. Examples : "Even though the old regulation about school uniforms seemed forgotten, it turned out to be one of the sleepers; the principal suddenly enforced it again after years of ignoring it. " law politics Chat with AIVocabulary GamePractice Reading
noun Download 🔗Share A spy, saboteur, or terrorist who lives unobtrusively in a community until activated by a prearranged signal; may be part of a sleeper cell. Examples : "After the war, authorities discovered several sleepers who had been living as ordinary citizens for years, waiting for orders. " politics military war police government person organization action society Chat with AIVocabulary GamePractice Reading
noun Download 🔗Share A small starter earring, worn to prevent a piercing from closing. Examples : "After getting my ears pierced, I wore small gold sleepers to keep the holes from closing up. " wear body item appearance Chat with AIVocabulary GamePractice Reading
noun Download 🔗Share A railway sleeping car. Examples : "We spent a night on an uncomfortable sleeper between Athens and Vienna." vehicle Chat with AIVocabulary GamePractice Reading
noun Download 🔗Share A sleeper hold. Examples : "The wrestler applied a tight sleepers, cutting off blood flow to his opponent's brain. " sport action body Chat with AIVocabulary GamePractice Reading
noun Download 🔗Share Something that achieves unexpected success after an interval of time. Examples : "A box-office bomb when it first came out, the film was a sleeper, becoming much more popular decades after being released." achievement business outcome Chat with AIVocabulary GamePractice Reading
noun Download 🔗Share A goby-like bottom-feeding freshwater fish of the family Odontobutidae. Examples : "The aquarium contained several sleepers, small fish that lived on the bottom of the tank. " fish animal Chat with AIVocabulary GamePractice Reading
noun Download 🔗Share A nurse shark (family Ginglymostomatidae). Examples : "The scuba divers were excited to spot several sleepers resting peacefully on the sandy ocean floor. " fish animal biology ocean Chat with AIVocabulary GamePractice Reading
noun Download 🔗Share A type of pajama for a person, especially a child, that covers the whole body, including the feet. Examples : "Aaron, Devin, and Laura looked so comfy in their sleepers." wear item family Chat with AIVocabulary GamePractice Reading
noun Download 🔗Share An automobile which has been internally modified to excess, while retaining a mostly stock appearance in order to fool opponents in a drag race, or to avoid the attention of the police. Examples : "My neighbor's old, beat-up sedan is one of those "sleepers"; it looks slow, but it actually has a powerful engine hidden under the hood. " vehicle technology sport police action style appearance machine technical Chat with AIVocabulary GamePractice Reading
noun Download 🔗Share A sedative. Examples : "The doctor prescribed some mild sleepers to help my grandmother rest after her surgery. " medicine Chat with AIVocabulary GamePractice Reading
noun Download 🔗Share A railroad tie. Examples : "The train rumbled over the tracks, its wheels clicking on the sleepers beneath. " structure building material technical industry machine Chat with AIVocabulary GamePractice Reading
noun Download 🔗Share A structural beam in a floor running perpendicular to both the joists beneath and floorboards above. Examples : "The construction crew carefully laid the sleepers on the concrete foundation before installing the hardwood floor. " architecture building structure Chat with AIVocabulary GamePractice Reading
noun Download 🔗Share A heavy floor timber in a ship's bottom. Examples : "The shipwright carefully inspected the sleepers in the hull to ensure they could support the heavy cargo. " nautical part material structure Chat with AIVocabulary GamePractice Reading
noun Download 🔗Share The lowest, or bottom, tier of casks. Examples : "The strongest sleepers in the brewery's barrel stack had to bear the weight of all the casks above them. " material industry Chat with AIVocabulary GamePractice Reading