The same word found in 1Thess4, harpazo, is found describing how Philip was caught away after baptizing the Ethiopian. The snatching away is not anywhere in scripture used to refer to Mary. That same 'snatching away' is used in several old and new testament places however, so we might conclude that 'harpazo' is a process used with the living, not with the Mother of Jesus as Catholicism has misapplied it.
Acts 8:39 hērpasen ἥρπασεν carried away 1 Thess 4:17 harpagēsometha ἁρπαγησόμεθα will be caught away
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The Jewish Scholars who made the Septuagint translation ,IIRC, used the same Greek word form for the Enoch catching away and the Elijah ride away in the firy chariot.