Pronunciation: [ˈe͡ɪs ˌʌp slˈiːvz] (IPA) 
The phrase "ace up sleeves" refers to having a surprise or secret advantage. The spelling of "ace" is /eɪs/, with the "a" pronounced as the long vowel sound /eɪ/. "Up" is spelled as it sounds: /ʌp/. "Sleeves" is spelled with the voiced "s" sound /z/ in the middle and the "v" sound /v/ at the end: /slivz/. Altogether, the phrase is spelled as /eɪs ʌp slivz/ according to the International Phonetic Alphabet.
The phrase "ace up sleeves" is an idiomatic expression used to describe a hidden or secret advantage or resource that someone possesses and can deploy strategically to gain an advantage over others, especially in a competitive situation. This phrase originates from the world of gambling, particularly playing card games such as poker, where each player is dealt a hand of cards. In such games, an "ace" is considered the highest-ranking card, thus symbolizing a valuable and advantageous asset.
When someone has an "ace up their sleeves," it implies that they possess a hidden asset or advantage that others are unaware of, giving them the ability to surprise or surpass their competitors. This advantage can be in the form of knowledge, skills, talents, or inside information that the person can use strategically to outperform others or achieve better results.
Metaphorically, the phrase represents having a secret or backup plan that can be used to turn the situation in one's favor unexpectedly, catching others off guard. It implies being well-prepared and resourceful, with the ability to adapt and overcome challenges.
Overall, "ace up sleeves" describes a hidden or secret advantage that someone possesses and can use to gain an upper hand in a competitive situation. It encapsulates the notion of surprise, strategic planning, and superiority while indicating an ability to outmaneuver others and achieve desirable outcomes.
