"umeshindaje" could someone break this down for me or is it just one word?
The root word here is the verb 'kushinda' which means 'to win'. When you conjugate the verb, 'ku' is dropped (most verbs will do this), then 'u' is added as the subject for 'you', 'me' in the present perfect tense for 'have' and 'je' is an ending for the verb to ask 'how?'
So broken down, the phrase is literally asking 'you, how have you won?', but in practice is used to ask how a person's day has been (have they won today?)
No problem! There are a few good resources online for how to conjugate verbs, as well as the book 'Swahili simplified'. I've only been learning a little under two months, but learning conjugation has been a huge help.
Along with the earlier response, the literal translation of this contextually is: "how have you been?"
The infix 'me' means immediate past, so I translated this, "How did you do today?" Kushinda always meant 'to complete' or 'to successfully manage' as in 'umeshinda safari yako!" Where I lived, it could possibly also have meant, "did you finish?".
When I see all the suggested meanings above for "kushinda", I feel compelled to add "to achieve", thinking that each of the other suggestions is a form of achievement (to win, to complete, to successfully manage, to finish).
How important is it to add 'wewe' to this? Reading comments below, it seems like the prefix 'u-' implies that already.
Should be "is" ... the day is still going on .... -me- is in swahili more than that here is suggusted... it is also for ongoing activities. If someone is know to arrive soon they will say .... amekuja ..... if he is there.... amekuja..... later if someone wants to know if he has arrived it is .... amekuja...