| SEPTUAGENARIAN | • septuagenarian n. Synonym of seventysomething: a person between 70 and 79 years old. • septuagenarian adj. Of or related to seventysomethings. • SEPTUAGENARIAN n. a person whose age is in the seventies. | 
| SEPTUAGENARIANS | • septuagenarians n. Plural of septuagenarian. • SEPTUAGENARIAN n. a person whose age is in the seventies. | 
| SEPTUAGENARIES | • septuagenaries n. Plural of septuagenary. • SEPTUAGENARY n. a septuagenarian. | 
| SEPTUAGENARY | • septuagenary adj. (Now rare) Of or related to the number seventy, particularly. • septuagenary n. (Now rare) Synonym of septuagenarian: a seventy-year-old. • SEPTUAGENARY n. a septuagenarian. | 
| SEPTUM | • septum n. (Biology) A wall separating two cavities; a partition. • septum n. (Colloquial) Ellipsis of septum ring. or septum piercing. • SEPTUM n. (Latin) a dividing membrane or partition. | 
| SEPTUMS | • septums n. Plural of septum. • SEPTUM n. (Latin) a dividing membrane or partition. | 
| SEPTUOR | • septuor n. (Music) Synonym of septet. • SEPTUOR n. a group of seven, also SEPTET, SEPTETTE. | 
| SEPTUORS | • septuors n. Plural of septuor. • SEPTUOR n. a group of seven, also SEPTET, SEPTETTE. | 
| SEPTUPLE | • septuple adj. Seven times as much; sevenfold. • septuple v. (Transitive) To multiply by seven. • septuple v. (Intransitive) To increase by a factor of seven. | 
| SEPTUPLED | • septupled v. Simple past tense and past participle of septuple. • SEPTUPLE v. to make seven times as great. | 
| SEPTUPLES | • septuples v. Third-person singular simple present indicative form of septuple. • SEPTUPLE v. to make seven times as great. | 
| SEPTUPLET | • septuplet n. A group of seven, particularly (music) a tuplet of seven notes. • septuplet n. One of a group of seven, particularly one of seven babies born at the same birth. • SEPTUPLET n. one of seven children born together. | 
| SEPTUPLETS | • septuplets n. Plural of septuplet. • SEPTUPLET n. one of seven children born together. | 
| SEPTUPLICATE | • septuplicate adj. Seven times the number, volume, length, etc. (of something else); septuple. • septuplicate v. To multiply by seven; to septuple. • SEPTUPLICATE n. a group of seven things. | 
| SEPTUPLICATES | • septuplicates v. Third-person singular simple present indicative form of septuplicate. • SEPTUPLICATE n. a group of seven things. | 
| SEPTUPLING | • septupling v. Present participle of septuple. • SEPTUPLE v. to make seven times as great. |