| Answer | Crossword Clue |
|---|---|
| fallback | An alternative plan that may be used in an emergency |
| fallbacks | An alternative plan that may be used in an emergency |
| trumps | A valuable resource that may be used, esp. as a surprise, in order to gain an advantage |
| fomite | an object (as a dish or an article of clothing) that may be contaminated with infectious organisms and serve in their transmission |
| taggant | nonreactive substance added to an explosive that may be traced if the explosive is used for unlawful purposes |
| copyleft | An arrangement whereby software or artistic work may be used, modified, and distributed freely on condition that anything derived from it is bound by the same condition |
