Dictionary API

The Dictionary API allows you to look up definitions for any English word.



Returns a string containing definitions for a given word.


word (required) - word to look up.


X-Api-Key (required) - API Key associated with your account.

Sample Request URL

Live Demo!


Sample Response

  "definition": "1. A body of law, sanctioned by legislation, in which the rules of law to be specifically applied by the courts are set forth in systematic form; a compilation of laws by public authority; a digest. Note: The collection of laws made by the order of Justinian is sometimes called, by way of eminence. "The Code" Wharton. 2. Any system of rules or regulations relating to one subject; as, the medical code, a system of rules for the regulation of the professional conduct of physicians; the naval code, a system of rules for making communications at sea means of signals. Code civil or Code Napoleon, a code enacted in France in 1803 and 1804, embodying the law of rights of persons and of property generally. Abbot.",
  "word": "code",
  "valid": true

import requests

word = 'code'
api_url = 'https://api.api-ninjas.com/v1/dictionary?word={}'.format(word)
response = requests.get(api_url, headers={'X-Api-Key': 'YOUR_API_KEY'})
if response.status_code == requests.codes.ok:
    print("Error:", response.status_code, response.text)
var word = 'code'
    method: 'GET',
    url: 'https://api.api-ninjas.com/v1/dictionary?word=' + word,
    headers: { 'X-Api-Key': 'YOUR_API_KEY'},
    contentType: 'application/json',
    success: function(result) {
    error: function ajaxError(jqXHR) {
        console.error('Error: ', jqXHR.responseText);
const request = require('request');
var word = 'code';
  url: 'https://api.api-ninjas.com/v1/dictionary?word=' + word,
  headers: {
    'X-Api-Key': 'YOUR_API_KEY'
}, function(error, response, body) {
  if(error) return console.error('Request failed:', error);
  else if(response.statusCode != 200) return console.error('Error:', response.statusCode, body.toString('utf8'));
  else console.log(body)
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;

import com.fasterxml.jackson.databind.ObjectMapper;

URL url = new URL("https://api.api-ninjas.com/v1/dictionary?word=code");
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setRequestProperty("accept", "application/json");
InputStream responseStream = connection.getInputStream();
ObjectMapper mapper = new ObjectMapper();
JsonNode root = mapper.readTree(responseStream);
let word = "code".addingPercentEncoding(withAllowedCharacters: .urlQueryAllowed)
let url = URL(string: "https://api.api-ninjas.com/v1/dictionary?word=" + word!)!
var request = URLRequest(url: url)
request.setValue("YOUR_API_KEY", forHTTPHeaderField: "X-Api-Key")
let task = URLSession.shared.dataTask(with: request) {(data, response, error) in
    guard let data = data else { return }
    print(String(data: data, encoding: .utf8)!)
If your programming language is not listed in the Code Example above, you can still make API calls by using a HTTP request library written in your programming language and following the above documentation.