| Latin | Translation | Notes |
| uberrima fides | most abundant faith | Or "utmost good faith" (cf. bona fide). A legal maxim of insurance contracts requiring all parties to deal in good faith. |
| ubertas et fidelitas | fertility and faithfulness | Motto of Tasmania. |
| ubi amor, ibi dolor | where [there is] love, there [is] pain | |
| ubi bene ibi patria | where [it is] well, there [is] the fatherland | Or "Home is where it's good"; see also ubi panis ibi patria. |
| ubi caritas et amor Deus ibi est | where there is charity and love, God is there | |
| ubi dubium ibi libertas | where [there is] doubt, there [is] freedom | Anonymous proverb. |
| ubi jus ibi remedium | Where [there is] a right, there [is] a remedy | |
| ubi mel ibi apes | where [there is] honey, there [are] bees | Similar to "you catch more bees with honey than with vinegar"—treat people nicely and they will treat you nicely in return. |
| ubi libertas ibi patria | where [there is] liberty, there [is] the fatherland | Or "where there is liberty, there is my country". Patriotic motto. |
| ubi nihil vales, ibi nihil velis | where you are worth nothing, there you will wish for nothing | From the writings of the Flemish philosopher Arnold Geulincx; also quoted by Samuel Beckett in his first published novel, Murphy. |
| ubi non accusator ibi non iudex | where [there is] no accuser, there [is] no judge | Thus, there can be no judgment or case if no one charges a defendant with a crime. The phrase is sometimes parodied as "where there are no police, there is no speed limit". |
| ubi panis ibi patria | where there is bread, there is my country | |
| ubi pus, ibi evacua | where there is pus, there evacuate it | |
| ubi re vera | when, in a true thing | Or "whereas, in reality..." Also rendered ubi revera ("when, in fact" or "when, actually"). |
| ubi societas ibi ius | if there's a society, law will be there | By Aristotle. |
| ubi solitudinem faciunt pacem appellant | They make a desert and call it peace | from a speech by Calgacus reported/constructed by Tacitus, Agricola, ch. 30. |
| ubi sunt | where are they? | Nostalgic theme of poems yearning for days gone by. From the line ubi sunt qui ante nos fuerunt ("Where are they, those who have gone before us?"). |
| ubique, quo fas et gloria ducunt | everywhere, where right and glory leads | Motto of the Royal Regiment of Artillery and most other Artillery corps within the armies of the British Commonwealth (for example, the Royal Regiment of Australian Artillery and Royal Regiment of New Zealand Artillery). |
| ultima ratio | last method
the final argument
the last resort (as force) |
| The last resort. Short form for the metaphor "The Last Resort of Kings and Common Men" referring to the act of declaring war; used in the names the French sniper rifle PGM Ultima Ratio and the fictional Reason weapon system. Louis XIV of France had Ultima Ratio Regum ("last argument of kings") cast on the cannons of his armies; motto of the 1st Battalion 11th Marines; motto of the Artilleriregementet. |
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| ultimo mense (ult.) | in the last month | Formerly used in formal correspondence to refer to the previous month. Used with inst. ("this month") and prox. ("next month"). |
| ultra vires | beyond powers | "Without authority". Used to describe an action done without proper authority, or acting without the rules. The term will most often be used in connection with appeals and petitions. |
| ultra posse nemo obligatur | No one is obligated beyond what he is able to do. |
| ululas Athenas | (to send) owls to Athens | From Gerhard Gerhards' (1466–1536) [better known as Erasmus] collection of annotated Adagia (1508). Latin translation of a classical Greek proverb. Generally means putting large effort in a necessarily fruitless enterprise. Compare "selling coal to Newcastle". |
| una hirundo non facit ver | one swallow does not make summer | A single example of something positive does not necessarily mean that all subsequent similar instances will have the same outcome. |
| una salus victis nullam sperare salutem | the only safety for the conquered is to hope for no safety | Less literally, "the only safe bet for the vanquished is to expect no safety". Preceded by moriamur et in media arma ruamus ("let us die even as we rush into the midst of battle") in Virgil's Aeneid, book 2, lines 353–354. Used in Tom Clancy's novel Without Remorse, where character John Clark translates it as "the one hope of the doomed is not to hope for safety". It was said several times in "Andromeda" as the motto of the SOF units. |
| unitas, iustitia, spes | unity, justice, hope | Motto of Vilnius. |
| unitas per servitiam | unity through service | Motto for the St. Xavier's Institution Board of Librarians. |
| uno flatu | in one breath | Used in criticism of inconsistent pleadings, i.e. "one cannot argue uno flatu both that the company does not exist and that it is also responsible for the wrong." |
| unus multorum | one of many | An average person. |
| Unus papa Romae, unus portus Anconae, una turris Cremonae, una ceres Raconae | One pope in Rome, one port in Ancona, one tower in Cremona, one beer in Rakovník | Motto of the Czech Brewery in Rakovník.[1] |
| Urbi et Orbi | to the city and the circle [of the lands] | Meaning "To Rome and the World". A standard opening of Roman proclamations. Also a traditional blessing by the pope. |
| urbs in horto | city in a garden | Motto of the City of Chicago. |
| usque ad finem | to the very end | Often used in reference to battle, implying a willingness to keep fighting until you die. |
| usus est magister optimus | practice is the best teacher. | In other words, practice makes perfect. Also sometimes translated "use makes master." |
| ut biberent quoniam esse nollent | so that they might drink, since they refused to eat | Also rendered with quando ("when") in place of quoniam. From a book by Suetonius (Vit. Tib., 2.2) and Cicero (De Natura Deorum, 2.3). The phrase was said by Roman admiral Publius Claudius Pulcher right before the battle of Drepana, as he threw overboard the sacred chickens which had refused to eat the grain offered them—an unwelcome omen of bad luck. Thus, the sense is, "if they do not perform as expected, they must suffer the consequences". |
| ut cognoscant te | so that they may know You. | Motto of Boston College High School. |
| ut desint vires, tamen est laudanda voluntas | though the power be lacking, the will is to be praised all the same | From Ovid, Epistulae ex Ponto (III, 4, 79). |
| ut dicitur | as has been said; as above | |
| ut incepit fidelis sic permanet | as she began loyal, so she persists | Thus, the state remains as loyal as ever. Motto of Ontario. |
| ut infra | as below | |
| ut in omnibus glorificetur Deus. | that in all things, God may be glorified | Motto of the Order of St. Benedict. |
| ut mare quod ut ventus | to sea and into wind | Motto of USNS Washington Chambers |
| ut prosim | that I may serve | Motto of Virginia Polytechnic Institute and State University |
| ut proverbium loquitur vetus... | you know what they say... | Lit: As the old proverb says... |
| ut res magis valeat quam pereat | that the matter may have effect rather than fail[2] | |
| ut retro | as backwards | Or "as on the back side"; thus, "as on the previous page" (cf. ut supra). |
| ut Roma cadit, sic omnis terra | as Rome falls, so [falls] the whole world | |
| ut sit finis litium | so there might be an end of litigation | A traditional brocard. The full form is Interest reipublicae ut sit finis litium, "it is in the government's interest that there be an end to litigation." Often quoted in the context of statutes of limitation. |
| ut supra | as above | |
| ut tensio sic vis | as the extension, so the force | Robert Hooke's expression of his discovery of his law of linear elasticity. Also: Motto of École Polytechnique de Montréal. Motto of the British Watch and Clockmaker's Guild. |
| utilis in ministerium | usefulness in service | Comes from 2 Timothy 4:11. Motto of Camberwell Girls Grammar School. |
| utraque unum | both into one | Also translated as "that the two may be one." Motto found in 18th century Spanish dollar coins. Motto of Georgetown University. |
| utrinque paratus | ready for anything | Motto of The British Parachute Regiment. Motto of the Belize National Coast Guard. |