1. Noun, Adverb (fukushi)

   opportunity; chance; occasion; time

   esp. 折

   お暇の折にはぜひ遊びに来てください。

2. Noun

   folding; fold; pleat; crease

   esp. 折り

3. small food box (wooden or cardboard)

   esp. 折り

4. Noun, used as a suffix

   folding in ... (two, three, etc.)

   as 二つ折り, 三つ折り, etc.; number indicates the number of layers after folding

5. Counter

   counter for folded items

6. counter for items (esp. food) packed in an oribako

   see 折り箱

Also written 折り【おり】ori