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# alternativesAsExact

> Alternatives of query words that should be considered exact matches.

export const Setting = ({type, default: defaultValue, defaultNote, scope, min, max, formerly}) => {
  const renderedDefault = defaultValue === '' ? '""' : defaultValue;
  const renderedNote = defaultNote ? `(${defaultNote})` : '';
  return <ul>
      <li><strong>Type:</strong> <code>{type}</code></li>
      <li><strong>Default:</strong> <code>{renderedDefault}</code>{renderedNote}</li>
      {min && <li><strong>Min:</strong> <code>{min}</code></li>}
      {max && <li><strong>Max:</strong> <code>{max}</code></li>}
      <li><strong>Scope:</strong> <a href="/doc/api-reference/api-parameters"><code>{scope}</code></a></li>
      {formerly && <li>
          <strong>Deprecated name:</strong> <code>{formerly}</code>
        </li>}
    </ul>;
};

<Setting type="list<enum<string>>" default="[&#x22;ignorePlurals&#x22;, &#x22;singleWordSynonym&#x22;]" scope="settings,search" />

The `alternativesAsExact` parameter defines which types of query word alternatives should be treated as **exact matches** by the [Exact ranking criterion](/doc/guides/managing-results/relevance-overview/in-depth/ranking-criteria#exact).
By default, plural forms (with [`ignorePlurals`](/doc/api-reference/api-parameters/ignorePlurals)) and single-word synonyms are considered exact. You can extend or limit this behavior based on your use case.

For more information, see:

* [Adjust the Exact criterion](/doc/guides/managing-results/optimize-search-results/override-search-engine-defaults/in-depth/adjust-exact-settings)
* [Customize plurals and other declensions](/doc/guides/managing-results/optimize-search-results/handling-natural-languages-nlp/how-to/customize-plurals-and-other-declensions)

### Options

<ParamField path="ignorePlurals">
  Treats plural and inflected forms (enabled by `ignorePlurals`) as exact matches.
</ParamField>

<ParamField path="singleWordSynonym">
  Treats single-word synonyms (for example, `"NY"` = `"NYC"`) as exact matches.
</ParamField>

<ParamField path="multiWordsSynonym">
  Treats multi-word synonyms (for example, `"NY"` = `"New York"`) as exact matches.
</ParamField>

## Examples

<AccordionGroup>
  <Accordion title="Current API clients" defaultOpen="true">
    <CodeGroup>
      ```cs C# theme={"system"}
      var response = await client.SetSettingsAsync(
        "INDEX_NAME",
        new IndexSettings
        {
          AlternativesAsExact = new List<AlternativesAsExact>
          {
            Enum.Parse<AlternativesAsExact>("IgnorePlurals"),
            Enum.Parse<AlternativesAsExact>("SingleWordSynonym"),
          },
        }
      );
      ```

      ```dart Dart theme={"system"}
      final response = await client.setSettings(
        indexName: "INDEX_NAME",
        indexSettings: IndexSettings(
          alternativesAsExact: [
            AlternativesAsExact.fromJson("ignorePlurals"),
            AlternativesAsExact.fromJson("singleWordSynonym"),
          ],
        ),
      );
      ```

      ```go Go theme={"system"}
      response, err := client.SetSettings(client.NewApiSetSettingsRequest(
        "INDEX_NAME",
        search.NewEmptyIndexSettings().SetAlternativesAsExact(
          []search.AlternativesAsExact{search.AlternativesAsExact("ignorePlurals"), search.AlternativesAsExact("singleWordSynonym")})))
      if err != nil {
        // handle the eventual error
        panic(err)
      }
      ```

      ```java Java theme={"system"}
      UpdatedAtResponse response = client.setSettings(
        "INDEX_NAME",
        new IndexSettings().setAlternativesAsExact(Arrays.asList(AlternativesAsExact.IGNORE_PLURALS, AlternativesAsExact.SINGLE_WORD_SYNONYM))
      );
      ```

      ```js JavaScript theme={"system"}
      const response = await client.setSettings({
        indexName: 'theIndexName',
        indexSettings: { alternativesAsExact: ['ignorePlurals', 'singleWordSynonym'] },
      });
      ```

      ```kotlin Kotlin theme={"system"}
      var response =
        client.setSettings(
          indexName = "INDEX_NAME",
          indexSettings =
            IndexSettings(
              alternativesAsExact =
                listOf(
                  AlternativesAsExact.entries.first { it.value == "ignorePlurals" },
                  AlternativesAsExact.entries.first { it.value == "singleWordSynonym" },
                )
            ),
        )
      ```

      ```php PHP theme={"system"}
      $response = $client->setSettings(
          'INDEX_NAME',
          ['alternativesAsExact' => [
              'ignorePlurals',

              'singleWordSynonym',
          ],
          ],
      );
      ```

      ```python Python theme={"system"}
      response = client.set_settings(
          index_name="INDEX_NAME",
          index_settings={
              "alternativesAsExact": [
                  "ignorePlurals",
                  "singleWordSynonym",
              ],
          },
      )
      ```

      ```ruby Ruby theme={"system"}
      response = client.set_settings(
        "INDEX_NAME",
        Algolia::Search::IndexSettings.new(alternatives_as_exact: ["ignorePlurals", "singleWordSynonym"])
      )
      ```

      ```scala Scala theme={"system"}
      val response = Await.result(
        client.setSettings(
          indexName = "INDEX_NAME",
          indexSettings = IndexSettings(
            alternativesAsExact =
              Some(Seq(AlternativesAsExact.withName("ignorePlurals"), AlternativesAsExact.withName("singleWordSynonym")))
          )
        ),
        Duration(100, "sec")
      )
      ```

      ```swift Swift theme={"system"}
      let response = try await client.setSettings(
          indexName: "INDEX_NAME",
          indexSettings: IndexSettings(alternativesAsExact: [
              SearchAlternativesAsExact.ignorePlurals,
              SearchAlternativesAsExact.singleWordSynonym,
          ])
      )
      ```
    </CodeGroup>
  </Accordion>

  <Accordion title="Legacy API clients">
    <CodeGroup>
      ```cs C# theme={"system"}
      IndexSettings settings = new IndexSettings();
      settings.AlternativesAsExact = new List
      {
          "ignorePlurals",
          "singleWordSynonym",
          "multiWordsSynonym",
      };

      index.SetSettings(settings);
      ```

      ```go Go theme={"system"}
      res, err := index.SetSettings(search.Settings{
      	AlternativesAsExact: opt.AlternativesAsExact(
      		"ignorePlurals",
      		"singleWordSynonym",
      		"multiWordsSynonym",
      	),
      })
      ```

      ```java Java theme={"system"}
      index.setSettings(
        new IndexSettings().setAlternativesAsExact(Arrays.asList(
          "ignorePlurals",
          "singleWordSynonym",
          "multiWordsSynonym"
        ))
      );
      ```

      ```js JavaScript theme={"system"}
      index
        .setSettings({
          alternativesAsExact: [
            "ignorePlurals",
            "singleWordSynonym",
            "multiWordsSynonym",
          ],
        })
        .then(() => {
          // done
        });
      ```

      ```kotlin Kotlin theme={"system"}
      val settings = settings {
        alternativesAsExact {
          +IgnorePlurals
          +SingleWordSynonym
          +MultiWordsSynonym
        }
      }

      index.setSettings(settings)
      ```

      ```php PHP theme={"system"}
      $index->setSettings([
        'alternativesAsExact' => [
          'ignorePlurals',
          'singleWordSynonym',
          'multiWordsSynonym'
        ]
      ]);
      ```

      ```python Python theme={"system"}
      index.set_settings(
          {"alternativesAsExact": ["ignorePlurals", "singleWordSynonym", "multiWordsSynonym"]}
      )
      ```

      ```ruby Ruby theme={"system"}
      index.set_settings(
        {
          alternativesAsExact: [
            "ignorePlurals",
            "singleWordSynonym",
            "multiWordsSynonym"
          ]
        }
      )
      ```

      ```scala Scala theme={"system"}
      client.execute {
        setSettings of "myIndex" `with` IndexSettings(
          alternativesAsExact = Some(Seq(
            "ignorePlurals",
            "singleWordSynonym",
            "multiWordsSynonym"
          ))
        )
      }
      ```

      ```swift Swift theme={"system"}
      let settings = Settings()
        .set(\.alternativesAsExact, to: [.ignorePlurals, .singleWordSynonym, .multiWordsSynonym])

      index.setSettings(settings) { result in
        if case .success(let response) = result {
          print("Response: \(response)")
        }
      }
      ```
    </CodeGroup>
  </Accordion>
</AccordionGroup>