航空信
“airmail letter; letter sent by air transport, faster than regular mail but with higher postage.”
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Characters in this word
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航
ㄏㄤˊ
To sail or navigate a boat or ship; a vessel or craft; the movement of ships or aircraft.
空
ㄎㄨㄥ
empty; vacant; unoccupied; air; sky; space; in vain; to empty; leisure; free time; bare; deserted; vast; high
信
ㄒㄧㄣˋ
to believe; to trust; to be convinced; letter; mail; message; news; truthful; confidence; at will