(ש"ע) יושב-ראש, מי שכנהן בתור יושב ראש; ראש האסיפה, מנחה; אדם המנהל את הועדה; ראש החברה; אדם המועסק להובלת אדם בכיסא-גלגלים

(פ') לשבת-ראש, לכהן כיושב ראש (לנהל ועדה, אסיפה וכו')

n. chairperson, person who presides over something; person who presides over a meeting; person who presides a committee; chief officer of a company; person employed to wheel a person in a chair

v. act as the presiding officer (of a committee, meeting, etc.), act as a chairman

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Noun
1. the officer who presides at the meetings of an organization; "address your remarks to the chairperson"
(synonym) president, chairwoman, chair, chairperson
(hypernym) presiding officer
(hyponym) Kalon Tripa
(derivation) chair

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Verb
1. act or preside as chair, as of an academic department in a university; "She chaired the department for many years"
(synonym) chair
(hypernym) head, lead
(derivation) president, chairwoman, chair, chairperson

n. předseda; předsedkyně; ředitel; ředitelka; předsednictví

Rzecz. przewodnicząc-y/a; prezes; przewodnictwo; prezesura

(n.)
The presiding officer of a committee, or of a public or private meeting, or of any organized body.
  

(n.)
One whose business it is to cary a chair or sedan.