1. The ordinal number of four hundred in counting order
   - four-hundredth

See also: ordinal

• dietary
• dietary fiber
• dietary fibre
• dietary supplement
• dieter
• dietetic
• dietetical
• dietetically
• dietetics
• diethyl ether
• diethylaminoethyl cellulose
• diethylbarbituric acid
• diethylmalonylurea
• diethylstilbesterol
• diethylstilbestrol
• diethylstilboestrol
• dietician
• dieting
• dietitian
• Dietrich
• Dietrich Bonhoeffer
• diffeomorphism
• differ
• difference
• difference limen