Tracking issue for commonly confused pairs and sets of words

These are all the issues for linting confusable pairs or groups of English words or terms.
This tracker is specifically for when all words in the group are correctly spelled English words, but the wrong one is used. For instance: "to" vs "too", "than" vs "then", "their" vs "there" vs "they're", "maybe" vs "may be".

### Highest priority: these are very common and important and not flagging them really stands out in first impressions:
- [x] #380
- [x] #381
- [ ] #406
- [x] #676
- [x] #1831

### Regular priority: these are still common but don't have the impact of the high priority items:
- [x] #467
- [x] #468
- [ ] #469
- [ ] #497
- [ ] #499
- [x] #503
- [x] #507
- [x] #535
- [x] #674
- [ ] #677
- [x] #1134
- [x] #1355
- [x] #1776
- [x] #1778
- [x] #1818

(This is my first attempt at making a tracking issue. Please correct my mistakes, reformat, convert to sub-issues, etc.)

Review the unchecked items (#406, #469, #497, #499, and #677) and their discussions first. Done means the remaining confusable-word work is accurately tracked and, where appropriate, reformatted or converted into sub-issues.

Written by the indexing model from the issue text.