1. A slope.

2. Sidewise.

3. Sloping.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• sipling,
• seddling,
• aideling,
• zideling,
• xideling,
• dideling,
• eideling,
• sudeling,
• sjdeling,
• skdeling,
• sodeling,
• s9deling,
• s8deling,
• siseling,
• sixeling,
• siddeling,
• sidling,
• siedling,
• Sydeling,
• Siberling

The adjective form of the word "sideling" is "sidelong".

The plural form of the word "sideling" is "sidelings".

The singular form of the word "Sideling" is "Sidelong"