Definition of "strengthen" []

• To make strong or increase the strength of. (verb-transitive)
• To become strong or stronger. (verb-intransitive)

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.

• "These changes and conditions are meant to enhance this event and in the long-term strengthen all our businesses, by reinforcing our identity as a destination of choice."
• "Mr. Liveris said the new terms strengthen his company's financial position compared with late last year, when the collapse of a joint venture with Kuwait left Dow without $9 billion it had planned to use to help pay for Rohm & Haas."
• "Duration and repetition strengthen a karmic pattern."