- To overturn. Often used with over: You're about to tump that thing over. (verb-transitive)
- To fall over. Often used with over: Is that wheelbarrow going to tump over? (verb-intransitive)
- A mound. (noun)
- A clump of trees, shrubs, or grass. (noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.