Reliable
Part of speech: noun
Definition: Something or someone reliable
Part of speech: adjective
Definition: Suitable or fit to be relied on; worthy of dependence or reliance; trustworthy Such that either a sent packet will reach its destination, even if it requires retransmission, or the sender will be told that it didn't
Example sentence: We are committed to delivering a safe, equitable, and reliable transportation system.
Trusty
Part of speech: adjective
Definition: Reliable or trustworthy.
Part of speech: noun
Definition: A trusted person, especially a prisoner who has been granted special privileges.