WordNet

inhabit a nest, usually after building; "birds are nesting outside my window every Spring"
a kind of gun emplacement; "a machine-gun nest"; "a nest of snipers"
furniture pieces made to fit close together
a cosy or secluded retreat
a gang of people (criminals or spies or terrorists) assembled in one locality; "a nest of thieves"
a structure in which animals lay eggs or give birth to their young
fit together or fit inside; "nested bowls"
gather nests

PrepTutorEJDIC

(鳥・昆虫・魚類・小動物などの)『巣』,巣穴 / 《集合的に》巣の中の鳥(動物など),(昆虫などの)群れ / 居ごこちよい場所,落ちつける場所 / (犯罪などの)温床;(悪党などの)巣窟(そうくつ) / (入れ子式・重箱式などになった物の)一組,一そろい《+『of』+『名』》 / 巣を作る,巣ごもる / …‘を'巣に入れる / (巣に入れるように)…‘を'すっぽり収める / …‘を'入れ子式にする,重ね合わせる