encryption key; cryptographic key
(talk of a) moneymaking scheme; moneymaking idea; get-rich-quick proposal
gut (used to make tennis rackets, violin strings, etc.); catgut
growth; development; one's early life; upbringing; personal history
drinking and vomiting; coming and going
good match for an opponent; worthy (e.g. rival)
discount; reduction; rebate; tenths discounted; tenths reduced
Full speed ahead!; Full steam ahead!
defeat; loss; failing to live up to (one's name, looks, etc.); discount; loss (on a sale)
detective team; study group; club
whole universe; total universe; all of creation
body; body blow (in boxing)
had enough; flatly refusing; wouldn't do for anything; begging pardon
thrust; driving force; propulsion
small child; kid; kiddy; tot; rug rat; ankle-biter
detective bureau; detective agency; investigation firm
form; shape; state; condition; letter; correspondence
hidden reserves of strength; latent energy; potentiality; real strength
chink in the armor (armour)
desperation; despair; self-abandonment
cowardly; craven; unfair; mean; sneaky
to go against; to fight against; to oppose; to resist; to deny
for dear life; barely escaping alive
to finger; to tamper (with)
ray (any fish of superorder Batoidea)
ideal situation; ideal world; perfect world; utopia
highlight (scene); high point; climax; show-off scene (of an actor in a play)
ignition; lighting; firing; setting off
charge (e.g. admission, menu item); cost; price
to be seething (with anger); to be frenzied; to be menacing; to be murderous
yoo-hoo; halloo; hi-de-ho; howdy; hey
decoy (for hunting); stool; lure; decoy; stool pigeon
the Four Heavenly Kings (Dhrtarastra, Virudhaka, Virupaksa, and Vaisravana); the big four (i.e. four leaders in a given field)