質問: My former best friend and I have grown apart over the last several years. We lived together for four years, after which he got married. I believe his wife is not a fan of me (I’m a lesbian, he’s a straight man, if that matters). At first we just talked less often, and he didn’t show up at as many get-togethers. Now he doesn’t reply to any of my texts or calls, including happy birthday messages. After several years of increasing radio silence, I posted something in favor of gun control. radio silenceはどのような意味でしょうか?よろしくお願いします
回答: "radio silence" 「無線信号を断つ」という意味です。例えば潜水艦が、敵に自らの位置を悟られないように無線を断つことを "maintain radio silence" などと言います。 ここでは「音信不通」という意味合いで使われているのだと思います。