eleven
n.n. the number that comes right after ten. It is written as 11.
n. the cardinal number equivalent to the sum of ten and one. Functions as a determiner or a noun depending on syntactic context.
There are eleven players on a soccer team.
The meeting is scheduled for eleven o'clock in the morning.
The clock struck eleven just as the last guest departed, leaving the house in a sudden, heavy silence.
From Middle English elleven, enleven, eleven, from Old English endleofan; from Proto-Germanic ainalif (“one left”) (i.e., one left over after having already counted to ten), a compound of ainaz and -lif, from Proto-Indo-European leyp- (“leave, remain”). Compare West Frisian alve, Low German ölven, Dutch elf, German elf, Icelandic ellefu, Danish and Norwegian elleve.
As a cardinal number, it typically precedes the noun it modifies or stands alone as a noun phrase.