Similar words: master, plaster cast, mass, amass, pyjamas, massive, the mass of, Christmas. Meaning: ['mæst /mɑːst] 
n. 1. a vertical spar for supporting sails 2. nuts of forest trees (as beechnuts and acorns) accumulated on the ground; used especially as food for swine 3. nuts of forest trees used as feed for swine 4. any sturdy upright pole.
n. 1. a vertical spar for supporting sails 2. nuts of forest trees (as beechnuts and acorns) accumulated on the ground; used especially as food for swine 3. nuts of forest trees used as feed for swine 4. any sturdy upright pole. 
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151. While a ketch offers these advantages to cruisers, they may also be more expensive because of the added mast and sail.
152. Bulb-like base of the new nutrition taproot apical root, then gradually after the autumn of mast storage root formation of spherical and thus the formation of new bulbs.
153. Unlike in a ketch or yawl, the forward mast is smaller than the aft mast (or sometimes the same size).
154. President Johnson declared Sunday, April 7, a national day of mourning, and all flags half mast.
155. That ain't bad for a man before the mast,(http://sentencedict.com/mast.html) you may lay to that.
156. Using toluidine blue staining and immunohistochemical ABC method we studied the distribution of SP, VIP and NPY in rat tongue mast cells and their morphologic characteristics.
157. The mast snapped off under the pressure of the wind.
158. Objective To investigate phenotype of mast cells in rat silicotic foci.
159. Mr Kennedy nailed his colours to the mast of the single currency.
160. The structural vibration of barrel-shaped mast is calculated by the ANSYS structural analysis software, in some different conditions.