Personally, I say it depends on the person.
Before somebody lambasts me, let me explain. If one has to have a CI, then of course they are deaf by definition. However, I know for a fact that when my CI is on I act very much hearing. To the point, that everybody thinks I'm "hearing". This includes the fact that I use the phone normally and do all the other stuff hearing do. I'm the guy that has about a 5-10% loss depending on the "noise" (with CI) but gets along fine otherwise.
As far as I'm concerned while my CI is on, I'm hearing. But at the same time, when it is off I'm deaf. Interesting dilemma for me...
I have a similar situation - I often say that Hh (instead of Hoh) means "Hard of Hearing" and "Half & Half"
I was born with SSD (+120db on mt deaf side) however by high school I had mild fluctuation loss on my "hearing, now Hoh side". As a young adult I was FINALLY diagnosed with APD.
Due to the APD as well as a result of medical conditions and medications which impact my hearing ... even though my pure tone tests show mild HL on my Hoh side - in reality most of the time, I function and response in a manner that indicates moderate HL on my Hoh side. Of course in noise, when stressed or exhausted etc the APD 'interferes' (for lack of a better term) even more significantly.
Because explaining this all the type is like writing a mini essay - I typically write "profound right +120db, Hoh left mild/mod flux +APD" as it is actually a better realistic explanation of my HL
Because of the SSD, APD and then additional mild/mod flux HL I constantly (and often suddenly) find myself "tightrope walking between 2 worlds".
In absolute quiet, with someone who speaks clearly and is facing me ... I'm "mildly Hoh" (but never "HEARING IN HEAD"!!!!)
*Typically, this happens about 5-10% of the time*
In a tiny amount of background noise (like a fan being on etc) even if someone is facing me speaking I'm significantly Hoh - even with my HA. *Typically, this is where I am about 70% of the time*
In anything more than a tiny amount of background noise I'm "functionally deaf", by which I mean that with or without my HA I am unable to understand ANY speech or understand the meaning of any sounds.
*Typically, about 20-25% of the time*
As such - I float between having only mild HL and being functionally deaf.
I have never felt "Hearing" even when I "only had" SSD with perfect hearing on the other side - being "hearing isn't something I can imagine anymore than being able to hear what stereo sounds like is something I can imagine (without transposing it into a visual concept).
I DO understand what it's like to be deaf! When I lay on my Hoh side - I hear NOTHING (and I LIKE IT!!). I have a TTY, visual signallers & a Sonic Boom alarm clock because I can't hear the doorbell etc and it's stressful worrying that you'll "miss something". I prefer ASL to English because it's far more accessible for me (and I can actually socialize with a GROUP of people in ASL, which is impossible for me in English!). I LOVE the Deaf Community, Culture etc and have been welcomed with open arms and hands ... whereas I always feel in the hearing world that I'm working to keep up, missing things, etc ... The Deaf Community is what "HOME"
should feel like - but often doesn't if you're the 90% of Hoh/deaf who have a hearing family
(and yes "HOME" includes the "good and the bad" including the "family": squabbles, bickering, support, love, friendship, honesty, safety, trust etc)
An interesting thing that has been very helpful is reading Deaffy's account of going from SSD, to Bilat deaf, to unilaterally CI .... he states that his personal experience is that he actaully hears BETTER now with the unilateral CI than he did when he was "naturally SSD"
This is very helpful for me because many of the people I know have worked with , or are friends of people who have 1 CI (90% of whom have been implanted in the last 5years)
They (hearing people) have ALWAYS insisted that I must hear SO MUCH better (with SSD +mild flux loss+APD) than the people they know with CI ... however I now can say that I know someone from whom this was not true. This is helpful mainly because these hearing people have always completely understood that CI is NOT like "having bilateral normal hearing" ... yet at the same time have told me that I "must hear basically the same as someone with normal hearing" (frankly their logic is a bit odd to me *shrug*lol)