indexer

noun

in·​dex·​er

-sə(r)

plural -s

1

: one that makes an index or works at indexing

2

a

: one who operates a machine for cutting index indentations into pages (as of reference books)

b

: one who prepares material (as reference books) for a machine that cuts index indentations or who prepares material for the insertion of index tabs

The Ultimate Dictionary Awaits

Expand your vocabulary and dive deeper into language with Merriam-Webster Unabridged.

1. Expanded definitions
2. Detailed etymologies
3. Advanced search tools
4. All ad-free

Discover what makes Merriam-Webster Unabridged the essential choice for true word lovers.

Start Your Free Trial Now