• xplaine,
• spcing,
• splent,
• spene,
• apline,
• splif,
• splite,
• spkane,
• splid,
• spaling,
• splle,
• splein,
• selina,
• spane,
• spllint,
• sprine,
• spliter,
• splene,
• sline,
• salene

• spelunker,
• spilman,
• splinters,
• splintery,
• spillman,
• spelunk,
• spelman,
• splenetic,
• spielman,
• splint,
• splinter,
• spellman,
• spelling,
• spallone,
• spillane,
• sapling.

The adjective form of the word "spline" is "splinal".

The plural of the "spline" can be the "splines".

The singular of the "spline" can be the "spline".