The word "ingests" refers to the act of taking in or swallowing something. There are several synonyms for this term that can be used instead, depending on the context and level of formality desired. One such synonym is "consumes," which implies that the person or thing is using up or taking in the substance. Another alternative is "absorbs", which suggests that the substance is being taken into the body or system and may have an effect on it. "Inhales" can be used for substances that are taken in through the breath, while "swallows" is a more straightforward synonym that specifically refers to ingesting through the mouth.