I'm trying to remember a word that means only one of the two:

a) a period or an era;
Or, it could also mean
b) genre, classification (usu. used in reference to fine arts, cinema or literary prose)
I remember I have heard it being used in either one or both of the senses mentioned above. Heck, I could be wrong about both. It probably means something entirely different.
The joy is, I can't remember anything about the word except only mildly. The word starts with either a "Y" or a "J" and it sounds something like "yawn-ra" or "jon-ra" or "yon-uhrr" or "jon-urr".

I've been googling my wits off and searching an online dictionary for a good measure of time. Please help my memory prevail.
I'm trying to remember a word that means only one of the two: a) a period or an era; Or, ... googling my wits off and searching an online dictionary for a good measure of time. Please help my memory prevail.

I suspect that the word you are looking for is one that you have written in your question, perhaps without knowing how it is pronounced: genre.

James
Water Cooler v2 :
Water Cooler v2 filted: And now, not because we intend ... as to tell us how you have been pronouncing it?...r

I pronounced it as jen-uh-rr.

That's understandable. But "yawn-uhrr" doesn't seem much better. In the UK at least, the pronunciation is basically French: ZHON-ruh.

http://www.merriam-webster.com/cgi-bin/audio.pl?genre001=genre

Mike Barnes
Cheshire, England
Students: We have free audio pronunciation exercises.
In our last episode, (Email Removed), the lovely and talented R H Draney broadcast on alt.usage.english:
Water Cooler v2 filted:

Oh, relief! Thank you so much for the help. I'm ... to pronounce a word I'd been mis-pronouncing till now. :-)

And now, not because we intend to tease you about it but because we collect such things, would you be so kind as to tell us how you have been pronouncing it?...r

Often heard as "ginner" from lo-cal PIP TV newsreaders.

Lars Eighner September 5928, 1993
306 days since Rick Warren prayed over Bush's third term.Obama: No hope, no change, more of the same. Yes, he can, but no, he won't.
Lars Eighner filted:
Often heard as "ginner" from lo-cal PIP TV newsreaders.

And like the surname "Jenner", for those of the PINPish persuasion?...

(I half-expected to hear "jenry" or even "ghenry"; my faith is incrementally restored)..r

A pessimist sees the glass as half empty.
An optometrist asks whether you see the glass
more full like this?...or like this?