swire /swīr/

1. A neck (obsolete)
2. (in place names) a hollow between two hills

• thio-ether
• thiol
• thiols
• thionyl
• thiopental
• thiopentals
• thiopentone
• thiopentones
• thiophen
• thiophene
• thiophenes
• thiophens
• thiophil
• thio-salt
• thio-salts
• thiosulphate
• thiosulphates
• thiosulphuric acid
• thiouracil
• thiouracils
• thiourea
• thioureas
• thir
• thiram
• thirams