xquery version "3.1";

let $word := "person"
let $request :=
  <http:request href="https://od-api.oxforddictionaries.com/api/v1/entries/en/{$word}/synonyms"  method="get">
    <http:header name="app_key" value="###"/>
    <http:header name="app_id" value="###"/>
  </http:request>
return http:send-request($request)