Segue

Verb. To move smoothly from one state or subject to another.

Swallet

Noun. A sinkhole; a shakehole.

Mohole

Noun. A hole drilled through the Earth’s crust into the Mohorovičić discontinuity, part of a scientific project of the 1960s.

Spang

Verb. To strike or ricochet with a loud report.

Frangible

Adjective. Able to be broken; breakable, fragile.

Troika

Noun. A party or group of three, especially a ruling council of three people in Russian contexts.

Skirl

Verb. To make a shrill sound, as of bagpipes.

Bowsprit

Noun. A spar projecting over the prow of a sailing vessel to provide the means of adding sail surface.

Fastidious

Adjective. Excessively particular, demanding, or fussy about details, especially about tidiness and cleanliness.

Waldo

Noun. A remote manipulation system in which a slave device mimics the motions of a master device manipulated directly by the operator.

Barge

Verb. To intrude or break through, particularly in an unwelcome or clumsy manner.

Fricative

Noun. Any of several sounds produced by air flowing through a constriction in the oral cavity and typically producing a sibilant, hissing, or buzzing quality; a fricative consonant.

Whicker

Noun. The soft neigh made by a horse.

Abjure

Verb. to renounce upon oath; to forswear; to disavow.

Tranche

Noun. A slice, section or portion.