Denshi Jisho — Online Japanese dictionary

速達 そくたつ express; special delivery
Common word, Noun, Suru verb 
速達便 そくたつびん special delivery mail; express delivery post
Common word, Noun, Abbreviation 
速達郵便 そくたつゆうびん special delivery mail; express delivery post
Noun 
速達郵便サービス そくたつゆうびんサービス express mail service; PD PR
Noun, Computer terminology 

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