filedivider
nounUK /ˈfaɪl dɪˌvaɪdə/
US /ˈfaɪl dɪˌvaɪdər/
A file divider is a small card or sheet that keeps papers in a folder in separate groups.
She put a file divider between the math papers and the art papers.
OTHER MEANINGS
2. A labeled tab that sticks up from a divider so you can find a section quickly.
The file divider had a red tab that said 'Bills'.
3. A software feature that splits a computer file into smaller parts.
The app used a file divider to break the big video into pieces.
4. A person or tool that separates items into different groups.
The file divider sorted the mail into piles for each office.