压轴

压轴	yā zhòu	final and most important item (on a program, schedule etc); grand finale; (attributive) final; climactic / (traditional Chinese opera) penultimate item on the program / Taiwan pr. [ya1zhou2]
压	yā	to press / to push down / to keep under (control) / pressure
压	yà	used in 压根儿 / used in 压马路 / used in 压板
轴	zhóu	axis / axle / spool (for thread) / roller (for scrolls) / classifier for calligraphy rolls etc
轴	zhòu	used in 压轴 / Taiwan pr. [zhou2]