n (uncountable)tree | Trees in a forest regarded as a source of wood.
n (British|uncountable) Wood that has been pre-cut and is ready for use in construction.
n (countable) A heavy woodenbeam, generally a whole log that has been squared off and used to provide heavy support for something such as a roof. Historically also used in the plural, as in "ship's timbers".
! Used by loggers to warn others that a tree being felled is falling.
v (transitive) To fit with timbers.
v (falconry|intransitive) To light or land on a tree.