To reduce uncertainty, humans often use prepositional phrases that describe the target object in reference to the most easily distinguished nearby objects. This research makes human-robot interactions ...

Jan. 14-20 is Idiom Week, and today we thought we’d have a heart-to-heart about some strange phrases we use. Idioms, metaphors and similes are all types of figurative language.

In grammar, a word belongs to a class if it has the properties of that class. A preposition heads a prepositional phrase, and usually takes a noun phrase as its complement.