on edit to have a costume symbol
Thanks for your feedback. You should be able to copy and paste a text symbol you want to insert into your Word Online document. Select the symbol you want to insert and either right-click on it to select Copy or hit Ctrl+C, then click on your Word Online document at the location you want to insert it, and either right-click and select Paste or hit Ctrl+V.
Let us know if this doesn’t solve your issue.