n.an official at a baseball game

同義詞：ump

v.be a referee or umpire in a sports competition

同義詞：referee

Umpires
Umpires
The Four Umpires: A Paradigm for Ethical Leadership
Scheduling English Cricket Umpires
Sources of stress among baseball and softball umpires
Protective garment for baseball umpires having an inner cushioned layer and an outer layer of interconnected plates
Activity Theory and the Social Construction of Knowledge: A Story of Four Umpires
A Microcomputer-Based Decision Support System for Scheduling Umpires in the American Baseball League
Creating communities that lead to retention: the social worlds and communities of umpires.
Comment on Blackler et al. Activity Theory and the Social Construction of Knowledge: A Story of Four Umpires