/Tom sat behind two girls on the bus and he got tired of their silly yak-yak./
Usable, effective, or operating all the year.
/Colorado is a year-round resort; there is fishing in the summer and skiing in the winter./
Extremely timid, cowardly.
/Joe Bennett is a yellow-bellied guy, don't send him on such a tough assignment!/
Cheap and sensational newspaper writing; inflammatory language designed to stir up popular sentiment against another country.
/Yellow journalism is hardly ever truly informative./
Cowardly.
/The young boy greatly resented being called yellow-livered and started to fight right away./
Help in time of need; serviceable and good assistance.
/Sam was pressed into yeoman service in organizing our annual fundraiser for cerebral palsy victims./
/John tries to get ahead on his job by being a yes-man./