diff --git a/foundation/foundation.d.ts b/foundation/foundation.d.ts
index d74e954e6..326574ff4 100644
--- a/foundation/foundation.d.ts
+++ b/foundation/foundation.d.ts
@@ -1,4 +1,4 @@
-// Type definitions for Foundation 3.2
+// Type definitions for Foundation 5.2.1
 // Project: http://foundation.zurb.com/
 // Definitions by: Boris Yankov <https://github.com/borisyankov/>
 // Definitions: https://github.com/borisyankov/DefinitelyTyped
@@ -6,83 +6,250 @@
 
 /// <reference path="../jquery/jquery.d.ts"/>
 
-interface OrbitOptions {
-    animation?: string;
-    animationSpeed?: number;
-    timer?: boolean;
-    resetTimerOnClick?: boolean;
-    advanceSpeed?: number;
-    pauseOnHover?: boolean;
-    startClockOnMouseOut?: boolean;
-    startClockOnMouseOutAfter?: number;
-    directionalNav?: number;
-    captions?: number;
-    captionAnimation?: string;
-    captionAnimationSpeed?: number;
-    bullets?: boolean;
-    bulletThumbs?: boolean;
-    bulletThumbLocation?: string;
-    afterSlideChange?: () => void;
-    fluid?: boolean;
+interface AbideOptions {
+    live_validate?: boolean;
+    focus_on_invalid?: boolean;
+    error_labels?: boolean;
+    timeout?: number;
+    patterns?: Object;
+    validators?: {
+        equalTo?: () => boolean;
+    };
 }
 
-interface RevealOptions {
-    animation?: string;
-    animationSpeed?: number;
-    closeOnBackgroundClick?: boolean;
-    dismissModalClass?: string;
-    /**
-    * The class of the modals background.
-    */
-    bgClass?: string;
-    open?: () => void;
+interface AccordionOptions {
+    active_class?: string;
+    multi_expand?: boolean;
+    toggleable?: boolean;
+}
+
+interface AlertOptions {
+    callback?: () => void;
+}
+
+interface ClearingOptions {
+    templates?: {
+        viewing?: string;
+    };
+}
+
+interface DropdownOptions {
+    active_class?: string;
+    align?: string;
+    is_hover?: boolean;
     opened?: () => void;
-    close?: () => void;
     closed?: () => void;
-    /**
-    * The modals background object.
-    */
-    bg: JQuery;
-    /**
-    * The css property for when the modal is opened and closed.
-    */
-    css: {
-        open: {
-            opacity?: number;
-            visibility?: string;
-            display: string;
-        };
-        close: {
-            opacity: number;
-            visibility: string;
-            display: string;
-        };
+}
+
+interface EqualizerOptions {
+    use_tallest?: boolean;
+    before_height_change?: () => void;
+    after_height_change?: () => void;
+}
+
+interface InterchangeOptions {
+    load_attr?: string;
+    named_queries?: Object;
+    directives?: {
+        replace?: (el: HTMLElement, path: string, trigger: (...args: any[]) => any) => any;
     };
 }
 
 interface JoyrideOptions {
-    tipLocation?: string;
-    nubPosition?: string;
-    scrollSpeed?: number;
+    expose?: boolean;
+    modal?: boolean;
+    tip_location?: string;
+    nub_position?: string;
+    scroll_speed?: number;
     timer?: number;
-    startTimerOnClick?: boolean;
-    nextButton?: boolean;
-    tipAnimation?: string;
-    pauseAfter?: number[];
-    tipAnimationFadeSpeed?: number;
-    cookieMonster?: boolean;
-    cookieName?: string;
-    cookieDomain?: boolean;
-    tipContainer?: string;
-    postRideCallback?: () => void;
-    postStepCallback?: () => void;
+    start_timer_on_click?: boolean;
+    start_offset?: number;
+    next_button?: boolean;
+    tip_animation?: string;
+    pause_after?: number[];
+    exposed?: HTMLElement[];
+    tip_animation_fade_speed?: number;
+    cookie_monster?: boolean;
+    cookie_name?: string;
+    cookie_domain?: boolean;
+    cookie_expires?: number;
+    tip_container?: string;
+    abort_on_close?: boolean;
+    tip_location_patterns?: {
+        top?: string[];
+        bottom?: string[];
+        left?: string[];
+        right?: string[];
+    };
+    post_ride_callback?: () => void;
+    post_step_callback?: () => void;
+    pre_step_callback?: () => void;
+    pre_ride_callback?: () => void;
+    post_expose_callback?: () => void;
+    template?: {
+        link?: string;
+        timer?: string;
+        tip?: string;
+        wrapper?: string;
+        button?: string;
+        modal?: string;
+        expose?: string;
+        expose_cover?: string;
+    };
+    expose_add_class?: string;
+}
+
+interface MagellanOptions {
+    active_class?: string;
+    threshold?: number;
+    destination_threshold?: number;
+    throttle_delay?: number;
+}
+
+interface OffCanvasOptions {}
+
+interface OrbitOptions {
+    animation?: string;
+    timer_speed?: number;
+    pause_on_hover?: boolean;
+    resume_on_mouseout?: boolean;
+    next_on_click?: boolean;
+    animation_speed?: number;
+    stack_on_small?: boolean;
+    navigation_arrows?: boolean;
+    slide_number?: boolean;
+    slide_number_text?: string;
+    container_class?: string;
+    stack_on_small_class?: string;
+    next_class?: string;
+    prev_class?: string;
+    timer_container_class?: string;
+    timer_paused_class?: string;
+    timer_progress_class?: string;
+    slides_container_class?: string;
+    preloader_class?: string;
+    slide_selector?: string;
+    bullets_container_class?: string;
+    bullets_active_class?: string;
+    slide_number_class?: string;
+    caption_class?: string;
+    active_slide_class?: string;
+    orbit_transition_class?: string;
+    bullets?: boolean;
+    circular?: boolean;
+    timer?: boolean;
+    variable_height?: boolean;
+    swipe?: boolean;
+    before_slide_change?: () => void;
+    after_slide_change?: () => void;
+}
+
+interface RevealOptions {
+    animation?: string;
+    animation_speed?: number;
+    close_on_background_click?: boolean;
+    close_on_esc?: boolean;
+    dismiss_modal_class?: string;
+    bg_class?: string;
+    open?: () => void;
+    opened?: () => void;
+    close?: () => void;
+    closed?: () => void;
+    bg?: JQuery;
+    css?: {
+        open?: Object;
+        close?: Object;
+    };
+}
+
+interface SliderOptions {
+    start?: number;
+    end?: number;
+    step?: number;
+    initial?: number;
+    display_selector?: string;
+    on_change?: () => void;
+}
+
+interface TabOptions {
+    active_class?: string;
+    callback?: () => void;
+    deep_linking?: boolean;
+    scroll_to_content?: boolean;
+}
+
+interface TooltipOptions {
+    additional_inheritable_classes?: string[];
+    tooltip_class?: string;
+    append_to?: string;
+    touch_close_text?: string;
+    disable_for_touch?: boolean;
+    hover_delay?: number;
+    tip_template?: (selector: string, content: string) => string;
+}
+
+interface TopbarOptions{
+    index?: number;
+    sticky_class?: string;
+    custom_back_text?: boolean;
+    back_text?: string;
+    is_hover?: boolean;
+    mobile_show_parent_link?: boolean;
+    scrolltop?: boolean;
+    sticky_on?: string;
+}
+
+interface FoundationOptions {
+    abide?: AbideOptions;
+    accordion?: AccordionOptions;
+    alert?: AlertOptions;
+    clearing?: ClearingOptions;
+    dropdown?: DropdownOptions;
+    interchange?: InterchangeOptions;
+    joyride?: JoyrideOptions;
+    magellan?: MagellanOptions;
+    offcanvas: OffCanvasOptions;
+    orbit?: OrbitOptions;
+    reveal?: RevealOptions;
+    tab?: TabOptions;
+    tooltip?: TooltipOptions;
+    topbar?: TopbarOptions;
+}
+
+interface FoundationStatic {
+    name: string;
+    version: string;
+    media_queries: Object;
+    stylesheet: CSSStyleSheet;
+    global: {
+        namespace: string;
+    };
+    init(scope: JQuery): JQuery;
+    init(scope: JQuery, libraries: FoundationOptions): JQuery;
+    init(scope: JQuery, libraries: string, method: FoundationOptions): JQuery;
+    init(scope: JQuery, libraries: string, method: string, options: Object): JQuery;
+    init_lib(lib: any, args: any): (...args: any[]) => any;
+    patch(lib: any): void;
+    inherit(scope: JQuery, methods: string): void;
+    set_namespace(): void;
+    libs: Object;
+    utils: {
+        S(selector: any, context: any): JQuery;
+        throttle(func: (...args: any[]) => any, delay: number): (...args: any[]) => any;
+        debounce(func: (...args: any[]) => any, delay: number, immediate: boolean): (...args: any[]) => any;
+        data_options(el: JQuery): Object;
+        register_media(media: string, media_class: string): void;
+        add_custom_rule(rule: string, media: string): void;
+        image_loaded(images: JQuery, callback: (...args: any[]) => any): void;
+        random_str(length?: number): string;
+    };
 }
 
 interface JQuery {
-    orbit(): JQuery;
-    orbit(OrbitOptions): JQuery;
-    reveal(): JQuery;
-    reveal(RevealOptions): JQuery;
-    joyride(): JQuery;
-    joyride(JoyrideOptions): JQuery;
+    foundation(): JQuery;
+    foundation(libraries: FoundationOptions): JQuery;
+    foundation(libraries: string, method: FoundationOptions): JQuery;
+    foundation(libraries: string, method: string, options: Object): JQuery;
 }
+
+declare var Foundation: FoundationStatic;