• undigirka,
• jndigirka,
• kndigirka,
• ondigirka,
• 9ndigirka,
• 8ndigirka,
• ibdigirka,
• imdigirka,
• ijdigirka,
• ihdigirka,
• insigirka,
• inxigirka,
• incigirka,
• infigirka,
• indigurka,
• indigirkka,
• Indigurkka,
• Indigirkah,
• Indigerka,
• Indegirka

• indicator,
• indigofera,
• indigen,
• indicant,
• indignantly,
• indicate,
• indictable,
• indigo,
• Indicatory,
• Indicating,
• indigotin,
• indict,
• indignation,
• indication,
• indicative,
• indignant,
• indigo bird.

The adjective form of "Indigirka" is "Indigirkan".

The plural form of the word "Indigirka" remains the same, as it is already a proper noun.

The singular form of "Indigirka" is "Indigirka".