Another word a day part 9

I on your Sherlockian hats, put on your gumshoes, and keep your private eyes peeled. It’s time for some word sleuthing. Wordsmith needs a few good word detectives to save the day. I had jotted down the following five words in my notebook, but I can’t remember what was common among them. Can you see a pattern in these seemingly random words? Is there a theme here that you can identify?