Uvular: /ɣ/ is a voiced sound produced at the uvula, and it is popular in French and Arabic, but it does not exist in English.
Glottal: /ʔ/
/h/ is voiceless and it occurs in words like house, him, her, hinder, harsh.
/ɦ/ is voiced and it occurs between two vowels: ahead
Glottal sounds are produced at the glottis.
Labiovelar: /w/
This sound is voiced and it has two places of articulation.
*lips ==> it involves rounding your lips.
*Velum ==> it involves raising the back of the tongue towards the velum.
It occurs word initially, word medially, but it rarely occurs word finally (Wisdom, wait, want, wonder, wonderful, weak, week, weep, wood, would, win, window, while, word, world, quick, somewhere, forward, quiz, question, reward, however, quiet, quit).
Zawawi