The "gh" in "laugh" comes from Middle English influence, where the "gh" was used to represent the "f" sound. Over time, English spelling has evolved to reflect the historical roots of words, even if the pronunciation changes.
The predicate in the sentence "The other workers laugh" is "laugh." It describes the action being performed by the subject (other workers).
A suppressed laugh is called a snicker or a snort. It is a quiet and stifled expression of amusement.
A person who makes people laugh is called a comedian.
A repressed laugh is when a person tries to stop themselves from laughing out loud, often because it is not an appropriate time or place to do so. It usually involves suppressing the urge to laugh by holding it in or stifling it.
A person who can't laugh is called an anhedonic. Anhedonia is the inability to experience pleasure, which can manifest in different ways, including an inability to laugh. It can be a symptom of various mental health conditions.
laugh
Laugh, cough, rough, tough
brightlycougheddelightfuldoughtyfightingfrightenedhighlighthighlyhighpointhighwayinsightfullaughinglightningmightilynaughtyneighborsnightfallnightgownnightmarenighttimerightfullysleighedslightlystraightenthoroughlytoughness
laugh The letter 'u' is silent although the 'augh' is what makes the sound 'arf'
Some words ending with the letters "gh" pronounced as "f" are: rough, tough, enough, cough, laugh.
The letters GH are pronounced as F in such words as:coughchough (a crow-like bird, pronounced chuff)enoughlaugh, laughterroughsloughtoughtrough
* rough * enough * cough * through * tough * bough * dough * high * laugh * thorough
trough
Although "gh" has the sound of "f" in some words with "ough" (and "laugh"), the words though, high, and night have a silent gh, the words ghost and aghast have a silent h, and the word bigheartedseparates the pair into two syllables.
cough,dough,enough,high,laugh,plough,rough,sigh,sleigh,thigh,tough,
See the related link below. Examples are laugh, tough, rough, cough
enoughcoughlaughploughnighand lots lots more if you look in a dictionary,