thicken
Concise Oxford English Dictionary © 2008 Oxford University Press:
thicken/ˈθɪkən/
▶verb make or become thick or thicker.
– phrases
the plot thickens the situation is becoming more complicated.
the plot thickens the situation is becoming more complicated.
– derivatives
thickener noun.
thickener noun.
'thicken' also found in these Oxford entries:

