#Mastodon tip: There is a way to use only part of a word as a hashtag!
For example, you might want to say the word “toots”, but use the hashtag “toot”.
To do this, place a U+2060 WORD JOINER before the “s” in “toots”. Example: #toots.
If you're using #X11 or #Wayland (i.e. #Linux or #BSD desktop), you can add the following line to ~/.XCompose to give yourself a keyboard shortcut:
<Multi_key> <w> <j> : "" U2060 # WORD JOINER
Then just type Compose, then W, then J.