# Dictionary and Etymology: Compare Two English Words

> Dictionary and Etymology: Compare Two English Words is a paid API for AI agents from dictionary-wiktionary.x402tookit.com, paid per call via x402, $0.03/call, status unknown (last checked 2026-11-02).

Compares two English words side by side, returning parts of speech, sense counts, lead definitions, and shared properties from Wiktionary.

## Facts

- Endpoint: GET https://dictionary-wiktionary.x402tookit.com/compare-words?utm_source=zero.xyz
- Price: $0.03/call
- Payment: x402
- Status: unknown
- Last checked: 2026-11-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/dictionary-and-etymology-compare-two-english-words-5299ddac
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_z585zXalpjJzT5UVlVoEg

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability dictionary-and-etymology-compare-two-english-words-5299ddac
```

Example prompt: Can you compare the words 'affect' and 'effect' for me — show their parts of speech, how many senses each has, and what they have in common?

## When to prefer this

Choose this endpoint when you need to systematically compare two English words across parts of speech, sense counts, and lead definitions in a single call. It is ideal for resolving commonly confused word pairs (affect/effect, assure/ensure) or for editorial and educational tools that need structured, comparable dictionary data. Prefer this over calling single-word lookup endpoints twice when you specifically need cross-word comparison metadata like shared senses or a summary verdict.

## Known failure modes

- Word not found in Wiktionary returns null data for that entry with a 'not found' status
- Non-English words may return empty or partial results since the service covers English only
- Misspellings or uncommon words may have limited sense data
- Missing required query parameters a or b result in a validation error

## How this service works

Compare two English words side by side: parts of speech, sense counts, lead definitions and what they share.

## Output

Returns a structured comparison of two English words including: word, status, letter count, Wiktionary source page, total sense count, parts of speech array, and per-part-of-speech breakdowns (sense count and lead definition) for each word; plus shared parts of speech, parts unique to each word, a summary verdict, and coverage metadata. Also includes source, license, and timestamp.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "a",
      "b"
     ],
     "properties": {
      "a": {
       "type": "string",
       "description": "First English word, e.g. affect"
      },
      "b": {
       "type": "string",
       "description": "Second English word, e.g. effect"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "a": {
       "type": [
        "null",
        "object"
       ],
       "properties": {
        "word": {
         "type": [
          "null",
          "string"
         ]
        },
        "status": {
         "type": [
          "null",
          "string"
         ]
        },
        "letters": {
         "type": [
          "null",
          "number"
         ]
        },
        "sourcePage": {
         "type": [
          "null",
          "string"
         ]
        },
        "totalSenses": {
         "type": [
          "null",
          "number"
         ]
        },
        "partsOfSpeech": {
         "type": [
          "array",
          "null"
         ],
         "items": {
          "type": "string"
         }
        },
        "byPartOfSpeech": {
         "type": [
          "array",
          "null"
         ],
         "items": {
          "type": "object",
          "properties": {
           "senseCount": {
            "type": [
             "null",
             "number"
            ]
           },
           "partOfSpeech": {
            "type": [
             "null",
             "string"
            ]
           },
           "leadDefinition": {
            "type": [
             "null",
             "string"
            ]
           }
          }
         }
        }
       }
      },
      "b": {
       "type": [
        "null",
        "object"
       ],
       "properties": {
        "word": {
         "type": [
          "null",
          "string"
         ]
        },
        "status": {
     
… (truncated)
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/dictionary-and-etymology-compare-two-english-words-5299ddac/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from dictionary-wiktionary.x402tookit.com](https://www.zero.xyz/host/dictionary-wiktionary.x402tookit.com/llms.txt)