The ordinal number of thirty-nine in counting order(adjective)
WordNet. Princeton University. 2010.
Use "39th" in a sentence
"And so despite the overwhelming opposition of the folks who own property over there, it looks as though 39th is the leading contender for the renaming."
""We had a suspension failure," said Gordon, who went to the garage on lap 159 for a repair that eventually left him 14 laps down in 39th place."
"Mickelson mired in 39th place after 1-over 73 on Saturday"