mergers and acquisitions
US /ˈmɜːrdʒərz ənd əˌkwɪˈzɪʃənz/
UK /ˈmɜːrdʒərz ənd əˌkwɪˈzɪʃənz/

1.
the area of corporate finance, corporate strategy and management dealing with the buying, selling, dividing and combining of different companies and similar entities that can help an enterprise grow rapidly in its sector or location of origin, or a new field or new location, without creating a subsidiary, other child entity or joint venture
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Our firm specializes in mergers and acquisitions.
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The company is exploring new mergers and acquisitions opportunities.