Definition from Wiktionary, the free dictionary
- ready for
- with no one/nothing remaining but
- Due to.
- It's down to me, the way she talks when she's spoken to / Down to me, the change has come, she's under my thumb.
2005, Stel Pavlou, Decipher:
- The intermittent signal dropout was down to a faulty connection which he'd fixed in seconds.
2011 16 May, James Mitchell Crow, “First signs of ozone-hole recovery spotted”, Nature:
- That difficulty is down to significant natural variations in average Antarctic stratospheric springtime ozone levels from year to year