1. A commodity that enters competition with established merchandise.
2. One who enters a competition.
3. Someone who enters.

Takes part in an activity.

ETYM For parcener, influenced by part.
1. An associate in any business or occupation; esp., a member of a partnership.
2. One who shares something with an other; a partaker; an associate.
3. A husband or a wife.
4. An unmarried companion.
5. Either one of a couple who dance together.

1. Someone who contracts to receive and pay for a certain number of issues of a publication; SYN. reader.
2. Someone who contributes (or promises to contribute) a sum of money; SYN. contributor.
3. Someone who expresses strong approval; SYN. endorser, ratifier.
A customer of a telephone company or other communications carrier.