CHEER / SHEER

cheer  (pronúncia)	alegrar, dar vivas
sheer  (pronúncia)	puro, completo, ingreme

"...a happy tune, full of cheer...(thefreedictionary.com)
"The fans cheered the runners on" (thefreedictionary.com)

"...got the job through sheer persistence." (thefreedictionary.com)