What is the Japanese word for some?

Depending on context, "some" could be any of the following:

• 一部 ichibu
  
• 若干 jakkan
• 多少 tashō
• 或る aru
• 或 aru
• å¹¾ iku
• いくらかの ikuraka no
• 幾らかの ikuraka no
• 何分の nan-bun'no