firststring
nounUK /ˈfɜːst.strɪŋ/
US /ˈfɝːst.strɪŋ/
The first string is the main player on a team.
She is the firststring on the school soccer team.
OTHER MEANINGS
2. The best or most important person in a group.
He is the firststring of the debate club.
3. The main or primary option among several choices.
This plan is our firststring for the project.
4. The first line or cord on a musical instrument or bow.
He plucked the firststring of the guitar.