shroud lines - chute, harness, pack, parachute, parachute jump, sky dive, umbrella, vent
,
lengthen - add to, aggrandize, amplify, augment, boost, broaden, build, build up, continue, dawdle, drag out, draw, draw out, dwell on, elongate,
prussic acid - acid, arsenic, poison ,
mathematical physics - acoustics, analysis, arithmetic, astrophysics, biophysics, cryogenics, crystallography, electronics, geophysics, mathematics, mechanics, natural science, nuclear physics, optics, philosophy,
naval-intelligence man - double agent, operative, scout, secret agent, spotter, spy ,
larva - apparition, appearance, arachnid, arthropod, astral, astral spirit, banshee, beetle, bug, caterpillar, centipede, chrysalis, cocoon, control, departed spirit,
elbow - angle, angle off, ankle, apex, arm, articulation, assault, barge in, bear, bear upon, bend, biceps, bifurcate, bifurcation, bight,
why - argument, baffling problem, brain twister, conundrum, crossword puzzle, crux, enigma, enigmatic question, excuse, explanation, floorer, ground, jigsaw puzzle, knot, knotty point,
miss nothing - concentrate, fix on, focus on, look out, pay attention, scrutinize, study, take care, watch out ,
icy-cold - congealed, frozen, gelid, glacial, ice, icy ,
lengthen - add to, aggrandize, amplify, augment, boost, broaden, build, build up, continue, dawdle, drag out, draw, draw out, dwell on, elongate,
prussic acid - acid, arsenic, poison ,
mathematical physics - acoustics, analysis, arithmetic, astrophysics, biophysics, cryogenics, crystallography, electronics, geophysics, mathematics, mechanics, natural science, nuclear physics, optics, philosophy,
naval-intelligence man - double agent, operative, scout, secret agent, spotter, spy ,
larva - apparition, appearance, arachnid, arthropod, astral, astral spirit, banshee, beetle, bug, caterpillar, centipede, chrysalis, cocoon, control, departed spirit,
elbow - angle, angle off, ankle, apex, arm, articulation, assault, barge in, bear, bear upon, bend, biceps, bifurcate, bifurcation, bight,
why - argument, baffling problem, brain twister, conundrum, crossword puzzle, crux, enigma, enigmatic question, excuse, explanation, floorer, ground, jigsaw puzzle, knot, knotty point,
miss nothing - concentrate, fix on, focus on, look out, pay attention, scrutinize, study, take care, watch out ,
icy-cold - congealed, frozen, gelid, glacial, ice, icy ,

