We don't have synonyms for suffocations yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are suffocation, suffocating and suffixations.
(n) :
(uncountable) Asphyxia—a condition in which an extreme decrease in the concentration of oxygen in the body accompanied by an increase in the concentration of carbon dioxide leads to loss of consciousness or death.
(n) :
(countable) A particular act of death or killing by means of asphyxia.
(n) :
(uncountable) Asphyxia—a condition in which an extreme decrease in the concentration of oxygen in the body accompanied by an increase in the concentration of carbon dioxide leads to loss of consciousness or death.
(n) :
(countable) A particular act of death or killing by means of asphyxia.