1d
English edit
Alternative forms edit
Noun edit
1d (plural 1ds)
- (British, Ireland, historical) Abbreviation of one penny. (a coin with the value of 1 pence/penny; 1/240th of a pound, in pre-decimalisation currency, never used for 'one new penny').
Adjective edit
1d (comparative more 1d, superlative most 1d)
- Initialism of one-dimensional.