Deciding is nailing down what was still floating

Where the picture shows up in 決める

1. 1

   Pinning one option out of many

   今日の会議で決めましょう。

   kyō no kaigi de kime-mashō

   Let us settle it at today's meeting.

2. 2

   Pinning down a date

   行く日を決めてから連絡します。

   iku hi o kimete kara renraku shimasu

   I will contact you once I have fixed the date.

3. 3

   Pinning your own mind

   毎朝走ると決めました。

   maiasa hashiru to kime-mashita

   I have made up my mind to run every morning.

4. 4

   Whose nail it is to drive

   私が決めることではありません。

   watashi ga kimeru koto de wa arimasen

   It is not mine to decide.

5. 5

   Finishing it in one strike

   最後にきれいに決めました。

   saigo ni kirei ni kime-mashita

   He finished it off beautifully at the end.

   A wobbling match gets nailed to one point and is over.