responsibility

IPA: rispɑnsʌbˈɪɫʌti

The state of being responsible, accountable, or answerable. [from Template:SAFESUBST: c.]
The state of being liable, culpable, or responsible for something in particular.
A duty, obligation or liability for which someone is held accountable.
(military) The obligation to carry forward an assigned task to a successful conclusion. With responsibility goes authority to direct and take the necessary action to ensure success.
(military) The obligation for the proper custody, care, and safekeeping of property or funds entrusted to the possession or supervision of an individual.

Examples of "responsibility" in Sentences

As the team leader, it is my responsibility to ensure that all tasks are completed on time and within budget
Taking care of a pet is a big responsibility that requires dedication and commitment
It is everyone's responsibility to recycle and reduce waste to protect the environment
Parents have a responsibility to provide for their children's basic needs and support their emotional development
With great power comes great responsibility, as Spider-Man famously said