When someone says, “I hate to intrude, but…” you can bet she is in fact going to interrupt your conversation or insert her opinion, even though it isn’t wanted. House burglars also intrude, but they don’t usually announce it first.
People can intrude in different ways, but it is usually uninvited and also unwelcome. This verb is derived from the Latin, intrudere, in which the in- means “into” and -trudere means, “to thrust.” So people can in intrude by thrusting or forcing themselves into your private life, your personal body space, or your home. Loud music could intrude into your studying. A memory could intrude while you are trying to focus on texting a message.