be learned in
command, know well ,
hang in - abide, abide with, bear, bear up, bear with, bide, brave, brook, come up fighting, dig in, endure, get along, get on, go on, go on with,
rigour - absolute zero, absoluteness, abstinence, abstruseness, accuracy, acerbity, acidity, acridity, acrimony, acuteness, adverse circumstances, adversity, affliction, aggravation, anchoritic monasticism,
no end of - boundless, considerably, countless, endless, eternal, ever so, extensive, galore, great deal, greatly, highly, immeasurable, immense, incalculable, incomprehensible,
breeches buoy - Mae West, buoy, ejection seat, life jacket, life preserver, lifeboat, lifeline, parachute, safety belt, water wings ,
missile - Atlas, Jupiter, Loki, Nike, Thor, Titan, atomic warhead, ball, bird, bola, bolt, boomerang, brickbat, discus, ejecta,
over-the-counter market - Wall Street, board, commodity exchange, corn pit, curb, curb exchange, curb market, exchange, exchange floor, outside market, pit, quotation board, stock exchange, stock market, stock ticker,
genesis - adaptation, alpha, babyhood, beginning, beginnings, birth, birth throes, birthing, blessed event, childbearing, childbirth, childhood, commencement, conception, confinement,
unexplainable - indefinable, inexplicable, inextricable, insoluble, miraculous, mysterious, mystical, occult, prophetic, supernatural, unaccountable ,
cop out - abatement of differences, abstain, abstention, accommodate, accommodation, adjust, adjustment, alibi, arrangement, bargain, cash in, check out, compose, composition, compound,
cross-check - audit, check, check out, collate, collation, confirm, confirmation, prove, test, validate, verification, verify ,
rigour - absolute zero, absoluteness, abstinence, abstruseness, accuracy, acerbity, acidity, acridity, acrimony, acuteness, adverse circumstances, adversity, affliction, aggravation, anchoritic monasticism,
no end of - boundless, considerably, countless, endless, eternal, ever so, extensive, galore, great deal, greatly, highly, immeasurable, immense, incalculable, incomprehensible,
breeches buoy - Mae West, buoy, ejection seat, life jacket, life preserver, lifeboat, lifeline, parachute, safety belt, water wings ,
missile - Atlas, Jupiter, Loki, Nike, Thor, Titan, atomic warhead, ball, bird, bola, bolt, boomerang, brickbat, discus, ejecta,
over-the-counter market - Wall Street, board, commodity exchange, corn pit, curb, curb exchange, curb market, exchange, exchange floor, outside market, pit, quotation board, stock exchange, stock market, stock ticker,
genesis - adaptation, alpha, babyhood, beginning, beginnings, birth, birth throes, birthing, blessed event, childbearing, childbirth, childhood, commencement, conception, confinement,
unexplainable - indefinable, inexplicable, inextricable, insoluble, miraculous, mysterious, mystical, occult, prophetic, supernatural, unaccountable ,
cop out - abatement of differences, abstain, abstention, accommodate, accommodation, adjust, adjustment, alibi, arrangement, bargain, cash in, check out, compose, composition, compound,
cross-check - audit, check, check out, collate, collation, confirm, confirmation, prove, test, validate, verification, verify ,