Flippin 'eck! You got a lot of homework!
"dependable" has a comfy resonance, something or someone who is
dependable will take care of all your requirements.
"reliable" is more impassive, something or someone who can be relied up
to do the task in hand but without an eye on the bigger picture.
An Accountant has to be reliable but he will need a dependable person
(a dog's body) to answer the phone and organise his appointments.
No difference worth commenting on.
--
John Dean
Oxford
>What is the difference in meaning/usage between the terms "dependable"
>and "reliable"?
A person would more often be described as dependable than reliable. If
I say Fred is dependable, it could mean I find him trustworthy, not
only reliable. If I said he was reliable, I'd likely mean he was
generally on time, but not necessarily trustworthy.
An aside: Reliability, a related word, has a technical definition,
when applied to equipment, based on a formula that directly relates it
to the mean time between failures. Dependability has no such technical
definition.
--
Charles Riggs