Responsibility \Re*spon`si*bil"i*ty\ (r?*sp?n`s?*b?l"?*t?), n.; pl. -ties (-t?z). [Cf. F. responsabilit['e].]

1. The state of being responsible, accountable, or answerable, as for a trust, debt, or obligation.

2. That for which anyone is responsible or accountable; as, the resonsibilities of power.

3. Ability to answer in payment; means of paying.

Source: Webster's Revised Unabridged Dictionary (1913)