| 2026-06-04 | Disguise, in a way |
| 2026-04-25 | Make secret, in a way |
| 2025-11-13 | Make hard to read, in a way |
| 2025-03-18 | Make hard to read |
| 2023-07-19 | Make cryptic |
| 2021-09-24 | What genes do, biologically |
| 2021-06-16 | Make hard to read, in a way |
| 2021-04-25 | Act as a blueprint for, as DNA for proteins |
| 2016-12-24 | Make tough to make out |
| 2016-03-27 | Make secret |
| 2013-09-17 | Purposely obfuscate, in a way |
| 2012-07-02 | Put in a secret language |
| 2011-09-21 | Obfuscate, in a way |
| 2010-05-09 | Make secret |
| 2010-02-27 | Protect, in a way |
| 2009-06-10 | Turn "this" into "_ .... .. ...," e.g. |
| 2009-05-15 | Secure, in a way |
| 2005-03-01 | Make unreadable, for security |
| 2002-12-22 | Hide, in a way |
| 2002-12-17 | Make cryptic |
| 2002-03-03 | Make secret |
| 1999-12-12 | Make hard to read |
| 1997-12-06 | Make secret |
| 1996-07-07 | Convert secretly |
| 1996-07-03 | Keep secret, in a way |
| 1996-03-07 | Make secret |
| 1995-08-06 | Write, as computer programs |
| 1994-12-29 | Convert a message |