set·ter 
/ˈsɛtɚ/ noun
plural set·ters /ˈsɛtɚ/ noun [count] 1 : a person or thing that determines or establishes something
▪ As a teenager, she was a style setter for her younger sister. [=her younger sister copied her style] ▪ world record setters [=people who set world records] — often used in combination ▪ I like to use the joke as a tone-setter for my speeches. [=use the joke to set the tone for my speeches] — see also pacesetter, trendsetter 2 : a large dog that has long ears and long, smooth hair
▪ English/Irish setters
▪ As a teenager, she was a style setter for her younger sister. [=her younger sister copied her style] ▪ world record setters [=people who set world records] — often used in combination ▪ I like to use the joke as a tone-setter for my speeches. [=use the joke to set the tone for my speeches] — see also pacesetter, trendsetter
▪ English/Irish setters
