CONSOLIDATE

[verb] - to (cause to) become stronger and more certain, or (esp. of businesses) to join together to become more effectiveThe recent success of their major product has consolidated the firm's position in this market. [T]The company has been expanding enough recently - I feel it's now time to consolidate (= stop growing and make our present position stronger). [I]She hoped that marriage would consolidate their relationship. [T]The party consolidated its hold on power/the country during its term of office. [T]The team consolidated their hold on the premier division with their biggest league win of the season. [T]The two firms consolidated (= joined) to form a single company. [I]