1. English Compound Words

Tier One Tier Two Tier Three

afternoon absentminded absentee ballot

aircraft abyssal zone

airplane African American Achilles tendon

airport afterlife acid rain

anything ad lib

babysitter aftershock Aegean Sea

backpack air force aerodynamic

baseball air quality air pressure

baseball airborne aircraft carrier

basketball airfield alluvial fan

basketball airline alternating current

bathing suit airman amino acid

bathroom airship amusement park

bathtub airstrip anal fin

beach chair all-star ante meridiem

bedroom alongside

birthday American Indian aphotic zone

breakfast anteater archerfish

bulletin board anyone Arctic Circle

bullfrog anywhere armed forces

bus stop applesauce Art Nouveau

butterfly arcade game atomic bomb

butterfly area code aurora borealis

cannot armpit baggage claim

chalkboard arrowhead ballhawk

classroom art form bandwidth

clipboard artwork bank statement

cowboy back up barrier reef

cross out backboard bas-relief