à l'improviste /a lɛ̃-prō-vēstˈ/

1. Suddenly
2. Unexpectedly
3. Unawares

• stand on one's own feet
• stand on one's own two feet
• stand on the defensive
• stand out
• standout
• standouts
• stand over
• stand pad
• stand pat
• standpatter
• standpatters
• standpattism
• standpattisms
• standpipe
• standpipes
• standpoint
• standpoints
• St Andrew's cross
• St Andrew's crosses
• St Andrew's Day
• stands
• stand sam
• stand shot
• stand someone in good stead
• standstill