core/homeassistant/components/media_player/translations/en.json

{
    "device_automation": {
        "condition_type": {
            "is_buffering": "{entity_name} is buffering",
            "is_idle": "{entity_name} is idle",
            "is_off": "{entity_name} is off",
            "is_on": "{entity_name} is on",
            "is_paused": "{entity_name} is paused",
            "is_playing": "{entity_name} is playing"
        },
        "trigger_type": {
            "buffering": "{entity_name} starts buffering",
            "changed_states": "{entity_name} changed states",
            "idle": "{entity_name} becomes idle",
            "paused": "{entity_name} is paused",
            "playing": "{entity_name} starts playing",
            "turned_off": "{entity_name} turned off",
            "turned_on": "{entity_name} turned on"
        }
    },
    "state": {
        "_": {
            "buffering": "Buffering",
            "idle": "Idle",
            "off": "Off",
            "on": "On",
            "paused": "Paused",
            "playing": "Playing",
            "standby": "Standby"
        }
    },
    "title": "Media player"
}