Yeah, first word I put in was 'bide' which wasn't recognised, and I couldn't work out what was going on until I realised the game wasn't registering it as a word. 'Lids' is also not a word, apparently.
Thanks for the feedback! The general rule for the word list is common words and no plurals. I can see how 'bide' could be considered a common word, and I'll keep reviewing the list.
'Lids' is plural, so it isn't included, but a quick shuffle might reveal a valid word!