sth

pronoun

1. An uncertain or unspecified thing; one thing.“I have a feeling something good is going to happen today.”
2. (of someone or something) A quality to a moderate degree.“That child is something of a genius.”
3. (of a person) A talent or quality that is difficult to specify.“She has a certain something.”
4. (often with really or quite) Somebody who or something that is superlative or notable in some way.“- Some marmosets are less than six inches tall. - Well, isn't that something?”