Thursday Morning Riddle

I’m the coins you might spare; a new phase the moon shows;
To switch trains on your trip; where the chart dips or grows;
I’m to diaper a baby; to put on new clothes;
And the progress the world makes, though some may oppose.

Who am I?

UPDATE: Riddle solved by Asher. See comments for answer.

2 Responses to “Thursday Morning Riddle”

  1. Asher Says:

    Change

  2. Bill Says:

    CHANGE is correct. Way to go, Asher!

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