• interlake,
• unterlaken,
• jnterlaken,
• knterlaken,
• onterlaken,
• 9nterlaken,
• 8nterlaken,
• ibterlaken,
• imterlaken,
• ijterlaken,
• ihterlaken,
• interelaken,
• interllaken,
• interlakeen,
• interlakenn,
• Interlakene,
• Intorlaken,
• Interlakin,
• Interlaeken,
• Interlakena

• interlard,
• interface,
• inter alia,
• interdepend,
• intermittence,
• interference,
• interfere,
• interlaced,
• interpellate,
• interpolate,
• interfering,
• internee,
• interlacing,
• intermural,
• interchange,
• internally,
• interiorise,
• interweave,
• interferon,
• interplay,
• interlobular,
• intervention,
• intercede,
• interlink,
• interstratify,
• interiorize,
• interloper,
• intervening,
• internalise,
• interlude,
• in the raw,
• interlock,
• interne,
• interlocking,
• Interpol,
• intermittency,
• intercalate,
• interrelate,
• in turn,
• intervene,
• interbrain,
• internalize,
• interpose,
• in-tray,
• interior,
• interwoven,
• interleukin,
• interleave,
• internment,
• interlope,
• interment,
• interstate,
• Internode,
• Interleaf,
• interval,
• Interahamwe,
• interlanguage,
• internet,
• interlinear,
• intermittent,
• internist,
• in theory,
• interlayer,
• interlingua,
• interlinking,
• intermarry,
• interlineal,
• interlace,
• intervenor,
• internal.

The adjective form of the word "Interlaken" is "Interlakenese".

The plural form of "Interlaken" is still "Interlaken." The word does not change when referring to more than one place.

The singular form of the word "Interlaken" remains the same - "Interlaken". It is both the singular and plural form of the noun without any changes.