lime

(noun) a caustic substance produced by heating limestone. Synonyms: calcium hydroxide, slaked lime, hydrated lime, calcium hydrate, caustic lime, lime hydrate.

(noun) a white crystalline oxide used in the production of calcium hydroxide. Synonyms: calcium oxide, quicklime, calx, calcined lime, fluxing lime, unslaked lime, burnt lime.

(noun) a sticky adhesive that is smeared on small branches to capture small birds. Synonyms: birdlime.

(noun) any of various related trees bearing limes. Synonyms: lime tree, Citrus aurantifolia.

(noun) any of various deciduous trees of the genus Tilia with heart-shaped leaves and drooping cymose clusters of yellowish often fragrant flowers; several yield valuable timber. Synonyms: linden, linden tree, basswood, lime tree.

(noun) the green acidic fruit of any of various lime trees.

(verb) spread birdlime on branches to catch birds. Synonyms: birdlime.

(verb) cover with lime so as to induce growth. Example: "Lime the lawn."