As thin as a rail
Spare and as thin as a rail are semantically related. In some cases you can use "Spare" instead an adjective phrase "As thin as a rail".
Spare
Spare adjective - Being over what is needed.
As thin as a rail and spare are semantically related. Sometimes you can use "As thin as a rail" instead an adjective "Spare".
Cite this Source
Spare and As thin as a rail. (2016). Retrieved 2026, August 01, from https://thesaurus.plus/related/as_thin_as_a_rail/spare
As thin as a rail & Spare. N.p., 2016. Web. 01 Aug. 2026. <https://thesaurus.plus/related/as_thin_as_a_rail/spare>.
Spare or As thin as a rail. 2016. Accessed August 01, 2026. https://thesaurus.plus/related/as_thin_as_a_rail/spare.