Fluid Construction Grammar (FCG) is the world’s most advanced computational platform for exploring constructional language processing, an innovative approach to language that offers a single representation for all linguistic knowledge. The expressive power of constructions allows to blur the distinction between vocabularies and grammar, and to extract rich semantic representations which makes FCG excellent for scenarios of grounded language usage (such as human-robot interactions). Moreover, FCG is fully bidirectional, which means that the same grammar can also be used for producing utterances based on a semantic representation.