Took the rest of the day (3)
I believe the answer is:
sat
This could be a double definition.
'took the rest' is the first definition.
'sat' can be an answer for 'took' (sit can mean to take an exam). I'm not certain of the 'the rest' bit.
'the day' is the second definition.
(abbreviation for Saturday)
'of' acts as a link.
Can you help me to learn more?
(Other definitions for sat that I've seen before include "Posed (for an artist)" , "Took a chair" , "Was in session" , "Took a seat and posed for a portrait" , "Was couch potato" .)