With tags, you can quickly return to important items, remind yourself about action items, or filter on notes you’d like to share with others. You can tag anything from a single line of text to an entire paragraph.
Tap on the page where you want to add a tag. You can select single words, sentences, or entire paragraphs prior to adding a tag
On the Home tab, tap the Tag icon on the far right, and then flick down to select the tag you want.
Some tags are dynamic. For example, the To Do tag allows you to add a checkmark to text when a task or item is complete.
To remove a tag, select the text that was previously tagged. Tap the Tag icon, and then tap the same tag again.
Note: To search for tags, tap the search icon in the upper left, and then enter the name of the tag, such as "Important" or "Critical". Don't search for the content of the tag.
remove a tag
The only tag that can be added to notes on an iPhone are To Do tags. The To Do tag allows you to add a checkmark to text when a task or item is complete.
To add a To Do tag, tap the screen where you want the tag to appear.
On the keyboard that appears, tap the To Do icon .
Note: You won't be able to add other types of tags from your iPhone. To add others, you'll have to use an iPad, PC, or Mac.
To remove the tag, select the text that was previously tagged. Tap the To Do icon again.