4 words in this vocabulary list
noun a barrier or obstacle set up to block or obstruct a road or passage
noun an underground passageway, typically through a hill or under a building, road, or river
verb No applicable parts of speech
adjective No applicable parts of speech
adverb No applicable parts of speech
pronoun No applicable parts of speech
preposition No applicable parts of speech
conjunction No applicable parts of speech
interjection No applicable parts of speech
article No applicable parts of speech
adjective capable of operating or functioning together in a smooth and efficient manner
noun a type of train that is smaller and lighter than traditional trains