abilityActivationTypes: {
    aoo: "Attack of Opportunity";
    attack: "Attack";
    free: "Free";
    full: "Full-round";
    hour: "Hour";
    immediate: "Immediate";
    minute: "Minute";
    move: "Move";
    nonaction: "Nonaction";
    passive: "Passive";
    round: "Round";
    special: "Special";
    standard: "Standard";
    swift: "Swift";
} = ...

This describes the ways that an ability can be activated.