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Purpose: This study aims at investigating the phonological development of the six guttural consonants of Jordanian Arabic, /χ/, /ʁ/, /ħ/, /ʕ/, /ʔ/, and /h/. Method: An articulation test is designed to involve two tasks: picture naming and repetition. The test includes 54 words for picture naming and 18 words for repetition, representing all possible positions of the targeted guttural sounds. Samples are collected from 40 typically developing Ammani-Jordanian Arabic– speaking monolingual children, living in Amman, Jordan. Respondents are equally divided into eight age-related trajectories: 2–2;6, 2;6–3, 3–3;6, 3;6–4, 4– 4;6, 4;6–5, 5–5;6, and 5;6–6 (years;months). No child with a history of hearing, speech, or vision disorders is included. The data are analyzed using production accuracy, where the three developmental trajectories of production (customary, acquisition, and mastery) are determined for each guttural, and error analysis, addressed based on perceptual judgments, providing details of every mispronounced or deleted guttural. Results: The results show that /χ/, /ħ/, /ʕ/, and /ʔ/ are acquired before the age of 6 years, while /ʁ/ and /h/ are still not acquired by this age. Respondents use relatively variant alternatives for the mispronounced cognates, including guttural, nonguttural sounds, and vowel substitution. The /ʁ/ is the guttural with the highest number of alternatives, while /ʔ/ gets the least. The analysis also reveals patterns of guttural deletion, with variations across different guttural sounds and positions. Despite errors/deviations made, respondents score accuracy percentages that gradually increase in correlation with age. The guttural /ʁ/ starts with the lowest accuracy percentages, while /ʔ/ and /ħ/ start with the highest. Conclusions: These findings illuminate on the developmental trajectory of guttural acquisition and enrich our understanding of children’s evolving perception and production abilities. They offer valuable insights into the patterns of guttural sound production in Jordanian Arabic–speaking children, laying the groundwork for further research and the development of targeted assessment and intervention strategies to support phonological development in this population. [ABSTRACT FROM AUTHOR]