aid:0
ailing:34
ailment:53
aim:64
aim at:95
aimless:119
air:130
air precautions:181
air-base:206
air-brake:215
air-jacket:232
air-lift:264
air-liner:301
air-mail:318
air-port:334
air-raid:343
air-route:359
air-tight:376
air-tube:390
airconditioned:410
aircraft:440
airfield:448
airforce:457
airman:479
airplane:494
airshelter:505
airship:518
airway:528
airy:545
aisle:570