lốc

• (Hà Nội) IPA^(key): [ləwk͡p̚˧˦]
• (Huế) IPA^(key): [ləwk͡p̚˦˧˥]
• (Hồ Chí Minh City) IPA^(key): [ləwk͡p̚˦˥]

(This etymology is missing or incomplete. Please add to it, or discuss it at the Etymology scriptorium.)

(classifier cơn, trận, con) lốc

1. vortex
2. tornado

From French bloc or English block.

lốc

1. block

The word is used mostly to count multipacks of milk and dairy products (individual, usually small, cartons or bottles) wrapped in transparent plastic, but can be used for such packs of anything (e.g. seaweed). It also counts sets of page-a-day calendars. Một lốc sữa is a multipack of four cartons of milk, and một lốc lịch is a set of page-a-day calendars.

• lịch lốc (page-a-day calendar)