Asking for more trouble

[Michael Barr <barr@math.mcgill.ca>]

G is now talking about locally compact spaces and there are two phrases I
have not seen.  One is "relatively compact".  I assume this is the same as
what I call "conditionally compact", i.e. having compact closure.  The
other is "denombrable".  The context is "Suppose that the locally compact
space $X$ is denombrable a l'infini".  Does it mean first countable?

I don't want to start a discussion what bad terms these are, I just want
to know what they mean.

Michael