Final answer:
The missing word in the sentence is 'politics'. Big money has interconnections with big politics through lobbying, campaign contributions, and media ownership, allowing wealthy individuals and corporations to influence government policy and public opinion.
Step-by-step explanation:
In the context of the question, the missing word that completes the sentence is politics.
According to the provided information, the interconnections between big money and big politics refer to the influence and power that wealthy individuals and corporations have over government policy through lobbying, campaign contributions, and media ownership. These individuals and companies use their financial resources to sway policymakers and shape cultural attitudes and values. The impact of money in politics is a topic of debate and has implications for democracy and the fairness of elections.