interplay /inˈtər-plā/

1. Mutual action
2. Interchange of action and reaction

• Blenheim spaniel
• blennies
• blennorrhoea
• blennorrhoeas
• blenny
• blent
• blepharism
• blepharisms
• blepharitis
• blepharitises
• blepharoplasty
• blepharospasm
• blepharospasms
• blesbok
• blesboks
• bless
• blessed
• blesseder
• blessedest
• blessedly
• blessedness
• blessednesses
• blessed sacrament
• Blessed Virgin
• blesses