S: (v) learn, larn, acquire (gain knowledge or skills) "She learned dancing from her sister"; "I learned Sanskrit"; "Children acquire language at an amazing rate"
S: (v) relearn (learn something again, as after having forgotten or neglected it) "After the accident, he could not walk for months and had to relearn how to walk down stairs"
S: (v) catch up (learn belatedly; find out about something after it happened) "I'm trying to catch up with the latest developments in molecular biology"