Log board (5)
I believe the answer is:
enter
I believe this is a double definition.
'log' is the first definition.
(thesaurus)
'board' is the second definition.
(thesaurus)
(Other definitions for enter that I've seen before include "Come in - penetrate - record" , "Get in" , "Pierce" , "Set foot in" , "Take part in a contest" .)