(v): hear with intention
(v): make a more or less disguised reference to
(v): drop a hint; intimate by a hint
(v): make reference to
(v): intend to refer to
(n): a public promotion of some product or service
(n): a message issued in behalf of some product or cause or idea or person or institution
Yes, weirdnet throws up the odd gem doesn't it.
I love the way the given definition is for the verb form.