He [Climbed / Climbed up] a tree
Does using climb or climb up in the above sentence makes any difference ? I think the only difference is while using the latter one one is specifying the direction i.e. He is going up on the tree e.g. If it was He climbed down the tree one mean to say he came down from the tree, but while using former one (just climbed instead of climbed up )it is not explicit but implicit that he is going up on the tree. Is there any other difference than this ? Or is it incorrect to use climb without up/down ?