1chair 
/ˈtʃeɚ/ noun
plural chairs /ˈtʃeɚ/ noun 1 [count] : a seat for one person that has a back and usually four legs
▪ a chair by the window ▪ We'll need a table and four chairs for the dining room. ▪ Please pull up a chair [=bring a chair to where we are] and join us. 2 [count] a : the person who is the leader of a department at a college or university
▪ He is now chair of the English department.
b : the person who is the leader of a meeting, organization, committee, or event
▪ She's chair of the school board this year. ▪ Address any questions to the committee chair. — see also chairman, chairperson, chairwoman 3 the chair US, informal : electric chair
▪ a murderer who was sentenced/sent to the chair
▪ a chair by the window ▪ We'll need a table and four chairs for the dining room. ▪ Please pull up a chair [=bring a chair to where we are] and join us.
▪ He is now chair of the English department.
b : the person who is the leader of a meeting, organization, committee, or event
▪ She's chair of the school board this year. ▪ Address any questions to the committee chair. — see also chairman, chairperson, chairwoman
▪ a murderer who was sentenced/sent to the chair
