KanjiJLPT N1
Addressed To

address, just like, fortunately

Mnemonic

Under the roof of the old post office, every carrier swears an oath: each parcel will reach whoever it is addressed to. They trace each name with a finger, vowing no letter will go astray beneath this sacred roof where the oath echoes daily.
Additional thoughts
Visualize a grand post-office roof with carriers raising their right hands, swearing their delivery oath over heaps of addressed mail. Roof on top, oath underneath—just like the kanji structure.
Quick recall
Under the roof, carriers swear an oath to deliver every letter addressed to its recipient.

Details

The keyword for 宛 is addressed to. This kanji conveys the sense of directing or sending something to a specific recipient, as when mail or a package is designated for a particular person or place. It carries the nuance of something being aimed at or intended for someone, and is commonly associated with the addressing of correspondence. By extension, it can also suggest the idea of "as if" or "just like," implying something is directed toward a resemblance or comparison.
On'yomi
えん
Kun'yomi
あ.てる、-あて、-づつ、あたか.も

Used in kanji

Used in vocab