1. The lines at which the sun reverta his course towards the equator, being 23

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

• tropicals,
• tiopics,
• tropicla,
• tropys,
• grapics,
• tropps,
• tipics,
• tropica,
• trics,
• tropies,
• topcs,
• topoics,
• trafics,
• tpoics,
• topiocs,
• tropius,
• tropicle,
• topicks,
• tropican,
• toopics

• triops,
• troops,
• trophic,
• tropical,
• trypsin,
• tripos,
• tropic,
• tropicbird,
• tropically,
• tropism,
• trappist,
• traffic,
• trapaceae.

The adjective form of the word "tropics" is "tropical".

The plural of the "tropics" can be the "tropics".

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