Can megillah reading be completely displaced by another mitzvah if doing both on that day is impossible?

PurimMegillah Reading

Synopsis

If it is impossible to perform both the other mitzvah and megillah reading on the same day, megillah reading is not completely displaced (except met mitzva). The other mitzvah can be done, and megillah reading is postponed or performed later.

Early Acharonim
Late Acharonim
Lenient
Strict
Lesser cited
Major authority

Discussion

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