xi

Plural: xis

Noun

• The 14th letter of the Greek alphabet (uppercase Ξ, lowercase ξ).
• the cardinal number that is the sum of ten and one
• the 14th letter of the Greek alphabet
• The 14th letter of Classical and Modern Greek. The 15th in Ancient and Old Greek.
• Either of a pair of hyperons having spin 1/2, which decay into a lambda particle and a pion.

Adjective Satellite

• being one more than ten

Examples

• A simple XI can sometimes open up the board for bigger Scrabble plays.

Synonyms

11, eleven

Related Words

alpha, beta, chi, delta, epsilon, eta, gamma, iota, kappa, lambda, mu, nu, omega, omicron, phi, pi, psi, rho, sigma, tau, theta, upsilon, zeta