Entry Definition
s/he gets older; s/he goes through puberty
s/he is older (than s/he used to be, or than someone else)
h/ older brother
he is related to h/ as older brother; he is h/ older brother
he is an older brother; s/he has an older brother
s/he treats h/ as older brother
s/he acts older than age (e.g., wears makeup or smokes when too young)
s/he treats h/ like older (more mature) person
h/ older sister
she is an older sister; s/he has an older sister
older than expected
s/he is older (than someone else), is the oldest
s/he looks older