charge; custody; safekeeping; deposit; storage
(on the) net; (on the) Internet; (on the) Web
by (means of); by doing; due to; via; through
assistant; helper; assistant (to a professor)
cutting edge; leading edge; forefront; tip; end
cryptography; cryptographic theory
proving ground; test site
to put on the market; to put out for sale; to put on sale; to become popular
(practical) application; putting to practical use; applied
to save up; to stockpile; to stash away; to hoard; to amass; to salt away
how much; how many; what amount; what extent
commercial value; commodity value; marketability
cheating (on an examination); cribbing
extempore; impromptu; improvised; ad-lib; off-the-cuff; instant
familiar (spirit or otherwise magical creature which aids a magician or sorcerer); familiar spirit
to run around; to bustle about
program (of events, music, etc.); programme; program (booklet); brochure; (computer) program; programming
increase; multiplication; propagation; proliferation
reverse; opposite; converse (of a hypothesis, etc.); inverse (function)
low rank; lower position; subordinate position; lower order (e.g. byte)
to pass on an order; to pass the word
protection; safeguard; guardianship; preservation; conservation
snare; trap (for catching wild game, etc.); trap (i.e. ruse, subterfuge, etc.)
advantage; point in favor; point in favour
to slacken; to loosen; to relax; to slack off (e.g. one's work, attention); to not put one's heart in
cowardly; craven; unfair; mean; sneaky
after the end (of something); post-
nonsense; no meaning; meaningless
to touch; to feel; to get involved (with); to approach; to be harmful to; to hinder
to assemble; to set up; to construct
end; tip; extremities; terminal
creation; generation; formation; derivation
to cross over; to cross; to pass through; to exceed; to surpass; to be more (than)
counting backwards; calculating backwards; inverse operation; reverse operation