psi
(noun) the 23rd letter of the Greek alphabet
Source: WordNet® 3.1
PSI
Initialism of pre-sentence investigation.
Initialism of protein structure initiative.
Initialism of pollutant safety/standard index(measurement of the air pollutant such as haze)
• IPS, IPs, ISP, Isp, PIs, iPS, isp, pis, sip
psi (countable and uncountable, plural psis)
(countable) The twenty-third letter of Classical and Modern Greek and the twenty-fifth letter of Old and Ancient Greek.
(uncountable, parapsychology) A form of psychic energy.
Initialism
psi
Pounds per square inch (an imperial unit of pressure)
• IPS, IPs, ISP, Isp, PIs, iPS, isp, pis, sip
Source: Wiktionary
2 April 2025
(adjective) secret or hidden; not openly practiced or engaged in or shown or avowed; “covert actions by the CIA”; “covert funding for the rebels”
Espresso is both a coffee beverage and a brewing method that originated in Italy. When making an espresso, a small amount of nearly boiling water under pressure forces through finely-ground coffee beans. It has more caffeine per unit volume than most coffee beverages. Its smaller serving size will take three shots to equal a mug of standard brewed coffee.
