{
    "term": "compound",
    "partOfSpeech": "noun",
    "academic": true,
    "ox5000": true,
    "cefr": "b2",
    "definitions": [
        {
            "senseNumber": 1,
            "definition": "a thing consisting of two or more separate things combined together",
            "cefr": "b2",
            "examples": [
                {
                    "text": "compounds derived from rainforest plants"
                },
                {
                    "text": "The air smelled like a compound of diesel and petrol fumes."
                }
            ]
        },
        {
            "senseNumber": 2,
            "definition": "a substance formed by a chemical reaction of two or more elements in fixed amounts relative to each other",
            "labels": "(chemistry)",
            "cefr": "b2",
            "examples": [
                {
                    "text": "Common salt is a compound of sodium and chlorine."
                },
                {
                    "text": "Dalton believed that the simplest compound of two elements must have one atom of each."
                },
                {
                    "text": "Scientists have produced a new chemical compound."
                },
                {
                    "text": "a compound of oxygen and hydrogen"
                },
                {
                    "text": "Proteins and fats are organic compounds."
                }
            ],
            "topics": ["Physics and chemistry"],
            "collocations": {
                "adjective": ["chemical", "inorganic", "organic"],
                "verb + compound": ["form", "make", "produce"],
                "compound + verb": [
                    "contain something",
                    "be derived from something",
                    "be found in something"
                ],
                "preposition": ["compound of"]
            }
        },
        {
            "senseNumber": 3,
            "definition": "a noun, an adjective or a verb made of two or more words or parts of words, written as one or more words, or joined by a hyphen. Travel agent, dark-haired and bathroom are all compounds.",
            "labels": "(grammar)",
            "cefr": "b2",
            "examples": [
                {
                    "text": "Most **compound nouns** form their plurals in the usual way."
                }
            ],
            "topics": ["Language"]
        },
        {
            "senseNumber": 4,
            "definition": "an area surrounded by a fence or wall in which a factory or other group of buildings stands",
            "examples": [
                {
                    "text": "life inside the prison compound"
                },
                {
                    "text": "Police are investigating a raid on a secure compound."
                },
                {
                    "text": "Angry crowds stormed the presidential palace compound."
                }
            ],
            "collocations": {
                "adjective": ["military", "palace", "prison"],
                "preposition": ["in a/​the compound", "inside a/​the compound"]
            }
        }
    ],
    "pronunciations": {
        "uk": [
            {
                "pronunciation": "/ˈkɒmpaʊnd/",
                "audio": "co/compound/compound__gb_1.mp3"
            }
        ],
        "us": [
            {
                "pronunciation": "/ˈkɑːmpaʊnd/",
                "audio": "co/compound/compound__us_1.mp3"
            }
        ]
    },
    "wordOrigin": "noun senses 1 to 3 late Middle English compoune (verb), from Old French compoun-, present tense stem of compondre, from Latin componere ‘put together’. The final -d was added in the 16th cent. on the pattern of expound and propound. noun sense 4 late 17th cent. (referring to such an area in SE Asia): from Portuguese campon or Dutch kampoeng, from Malay kampong ‘enclosure, hamlet’."
}