titter¹/ʹtitə/ verb intrans (tittered, tittering)

titter²noun

• Gregorian telescope
• greisen
• gremlin
• Grenache
• grenade
• Grenadian
• grenadier
• grenadine
• Gresham's law
• grew
• grey
• grey area
• greybeard
• grey eminence
• Grey Friar
• greyhound
• greylag
• grey market
• grey matter
• grey seal
• grey squirrel
• greywacke
• grey water
• grid
• griddle