Philadelphus /fil-ə-delˈfəs/

1. A genus of tall deciduous shrubs with showy flowers (family Philadelphāˈceae)
2. (without cap) any shrub of this genus, esp the mock orange

• jackknifing
• jackknives
• jackman
• jackmen
• Jack Mormon
• Jack-of-all-trades
• Jack of Lent
• Jack-o'-lantern
• jack pine
• jack pines
• jack plane
• jack planes
• jack plug
• jack plugs
• jackpot
• jackpots
• Jack-priest
• Jack-pudding
• jack rabbit
• jack rabbits
• jack-rafter
• jack-rafters
• Jack Robinson
• Jack Russell
• Jack Russells