1. In place of, or as an alternative to
   - alternatively, instead, or else

Encyclopedia: In lieu

• isogonic line
• isogram
• isohel
• isohyet
• isolable
• isolate
• isolated
• isolating
• isolation
• isolationism
• isolationist
• isolationistic
• isolator
• Isolde
• Isole Egadi
• isoleucine
• isoline
• isomer
• isomerase
• isomeric
• isomerisation
• isomerise
• isomerism
• isomerization
• isomerize