Amphibology or amphiboly (from the Greek amphibolia) is, in logic, a verbal fallacy arising from ambiguity in the grammatical structure of a sentence.

For example:

Teenagers shouldn't be allowed to drive. It's getting too dangerous on the streets.

From the above statement it could be interpreted that teenagers shouldn't drive because they will be in danger, or that they shouldn't drive as they are causing all the danger.

A better example might be 'If you think the waiters are impolite you should see the manager' or 'I once shot an elephant in my pajamas'.

It occurs frequently in poetry, owing to the alteration for metrical reasons of the natural order of words; for example, Shakespeare, in Henry VI:

The duke yet lives that Henry shall depose. (1.4.30).

Marlowe in Edward II provides an equally famous example:

Edwardum occidere nolite timere bonum est.

Depending on how the reader punctuates this line, this can be interpreted as Edward's death sentence, or as an order to preserve Edward's life: Fear not to kill the king, 'tis good he die... kill not the king, 'tis good to fear the worst. (5.4.8-11)

Other examples of amphibology:

Dog for sale. Will eat anything. Especially fond of children.

At our drugstore, we dispense with accuracy!

(Professor to student, on receiving a fifty-page term paper): "I shall waste no time reading it." (Often attributed to Spooner)

"I saw a Greyhound driving back from the store today."

"Dogs must be carried." (sign on the escalators of the London Underground)

Verbal fallacies

Amfibologia | Anfibología | Amphibologie | Anfibologia | אמפיבולה | Amfibolia | Амфіболія