Meaning of undo | Babel Free

Definitions

1. To come open or unfastened.
2. (the cause of) ruin or disaster. Gambling was his undoing. ondergang دَمار، كارِثَه погубване ruína zkáza das Verderben ruin καταστροφήruina hukatus علت نابودی؛ فنا tuho perte הַגוֹרֵם לַחוּרבָּן उलट-पुलट, बरबादी, नाश propast, uništenje romlás kehancuran eyðilegging, fall rovina 破滅 파멸 pražūtis posts; bojāeja punca kemusnahan ondergang ulykke, undergang, ødeleggelse zguba له منځه وړنه، باطلونه، ړنګونه، تباهي ruína distrugere погибель skaza poguba propast fördärv, olycka, undergång ความหายนะ ma...
3. (of work, a task etc) not done, or not finished. I don't like going to bed leaving jobs/work undone. onopgemaak, onklaargemaak غَيْر مَعْمول незавършен incompleto nedodělaný unerledigt ugjort ατελείωτος, ανολοκλήρωτος inacabado, por hacer, sin hacer tegemata انجام نشده؛ به پایان نرسیده tekemätön pas fait; inachevé לא גָמוּר असंपादित nedovršen el nem végzett belum diselesaikan ófullgerður (non terminato) 未完成の 미완성의 nepadarytas, neužbaigtas nepadarīts; nepaveikts tdk menyiapkan ongedaan, onafgem...
   etc
4. vt. deshacer, desatar; desabrochar, desbaratar.
5. To reverse or erase; annul: impossible to undo the suffering caused by the war.
6. To untie, disassemble, or loosen: undo a shoelace.
7. To open (a parcel, for example); unwrap.
8. To cause the ruin or downfall of; destroy.
9. (also intr) to untie, unwrap, or open or become untied, unwrapped, etc
   also intr
10. to reverse the effects of

CEFR level