"Halal" is an Arabic word, generally means permit. Using in term of religion means permit by religion rules. For example, permit to eat, permit to drink, permit to do and etc.

Ruling (Fatwa) Chularatchamontri No. 7/2014 regarding the use of eye drops

Judgment (Fatwa) Chularatchamontri No. 12/2013 regarding the creation of a project to promote the ceremony of breaking the fast in the month of Ramadan.