non-logical interval connective: ordered components: ... center, ... range surrounding center.

- bi'i
- non-logical interval connective: unordered between ... and ...
- bi'o
- non-logical interval connective: ordered from ... to ...
- bi'oi
- non-logical interval connective: ordered interval with specified endpoint/terminus x
_{1}and signed measure/length/duration x_{2}; interval between x_{1}and x_{1 + x}according to the ordering of the space. - mi'i
- non-logical interval connective: ordered components: ... center, ... range surrounding center.

- ce'ei'oi
- BIhI argument modifier: indicates dimensionality/length of tuple
- cmavrbi'i
- x
_{1}is the selma'o "BIhI".

- bi'in zei uanta
- x
_{1}is a part of Lojban text representing rule 'interval' according to the first edition of the book 'The Complete Lojban Language'.