{
    "term": "occur",
    "partOfSpeech": "verb",
    "academic": true,
    "ox3000": true,
    "cefr": "b1",
    "verbForms": {
        "presentSimple": {
            "iYouWeThey": "occur",
            "heSheIt": "occurs"
        },
        "pastSimple": "occurred",
        "pastParticiple": "occurred",
        "ingForm": "occurring"
    },
    "definitions": [
        {
            "senseNumber": 1,
            "definition": "to happen",
            "cefr": "b1",
            "ox3000": true,
            "examples": [
                {
                    "text": "When exactly did the **incident occur**?"
                },
                {
                    "text": "Something unexpected occurred."
                },
                {
                    "text": "Three major **events occurred** in my life that year."
                },
                {
                    "text": "These chemical changes occur naturally."
                },
                {
                    "text": "In most years more deaths occur in winter."
                },
                {
                    "text": "Opportunities for learning occur spontaneously every day."
                },
                {
                    "text": "A new outbreak of smallpox occurred in 1928."
                },
                {
                    "text": "Impact occurred seconds after the pilot signalled for help."
                },
                {
                    "text": "Major economic changes have occurred recently."
                },
                {
                    "text": "Peasant rebellions occurred throughout the 16th century."
                },
                {
                    "text": "The collision occurred near the hospital."
                },
                {
                    "text": "The explosion occurred just after midday."
                },
                {
                    "text": "The fits usually occur at night."
                },
                {
                    "text": "These climate shifts occurred over less than a decade."
                },
                {
                    "text": "Travellers complained about lack of information when travel delays occurred."
                },
                {
                    "text": "Such storms are likely to occur for the next six to ten weeks."
                },
                {
                    "text": "The disease can occur at any time of the year."
                },
                {
                    "text": "These symptoms occur in some patients but not in others."
                },
                {
                    "text": "This rally usually occurs between Christmas and New Year's day."
                },
                {
                    "text": "Five attacks occurred in a 12-day period."
                },
                {
                    "text": "Several conversations occurred simultaneously."
                },
                {
                    "text": "The fractures occurred as a direct result of osteoporosis."
                }
            ],
            "collocations": {
                "adverb": ["commonly", "frequently", "often"],
                "verb + occur": ["be likely to", "tend to", "be unlikely to"],
                "preposition": ["among", "in"]
            }
        },
        {
            "senseNumber": 2,
            "definition": "to exist or be found somewhere",
            "sensetop": "+ adv./prep.",
            "cefr": "b2",
            "ox3000": true,
            "examples": [
                {
                    "text": "Sugar occurs naturally in fruit."
                },
                {
                    "text": "**naturally occurring** chemicals in the brain"
                },
                {
                    "text": "Lemurs occur in the wild only in Madagascar."
                },
                {
                    "text": "Infected plants frequently occur in patches."
                },
                {
                    "text": "Calluses typically occur on the bottom of the feet and heel."
                }
            ],
            "collocations": {
                "adverb": ["commonly", "frequently", "often"],
                "verb + occur": ["be likely to", "tend to", "be unlikely to"],
                "preposition": ["among", "in"]
            }
        }
    ],
    "pronunciations": {
        "uk": [
            {
                "pronunciation": "/əˈkɜː(r)/",
                "audio": "oc/occur/occur__gb_2.mp3"
            },
            {
                "pronunciation": "/əˈkɜːz/",
                "audio": "oc/occur/occurs__gb_1.mp3"
            },
            {
                "pronunciation": "/əˈkɜːd/",
                "audio": "oc/occur/occurred__gb_1.mp3"
            },
            {
                "pronunciation": "/əˈkɜːrɪŋ/",
                "audio": "oc/occur/occurring__gb_1.mp3"
            }
        ],
        "us": [
            {
                "pronunciation": "/əˈkɜːr/",
                "audio": "oc/occur/occur__us_2.mp3"
            },
            {
                "pronunciation": "/əˈkɜːrz/",
                "audio": "oc/occur/occurs__us_1.mp3"
            },
            {
                "pronunciation": "/əˈkɜːrd/",
                "audio": "oc/occur/occurred__us_1.mp3"
            },
            {
                "pronunciation": "/əˈkɜːrɪŋ/",
                "audio": "oc/occur/occurring__us_1.mp3"
            }
        ]
    },
    "wordOrigin": "late 15th cent.: from Latin occurrere ‘go to meet, present itself’, from ob- ‘against’ + currere ‘to run’."
}