kumquat, of course
· kiwi · mango · quince · tomato
Mango
kumquat
Seven letter words from these letters are:CampingCappingCarpingEpigramGrimaceMappingMarkingPackingParkingPeakingPeckingPermianRackingRappingReamingReaping
B, D, E, F, H, I, K, L, M, N, P, R, T, (As capitals) b, d, h, i, k, l, m, n, p, q, r, (as small letters)
jitterykindheartedmagnificentnaughtyoptimisticquestionableunderstandingwisexenophobiczesty
Quacked
K
False After K: its L(1), M(2), N(3), O(4), P(5), Q(6) Then its R.
Quark
In upper case: A, B, G, K, M, N, Q, R, V, W, X, Y and Z.
The letters "f n b o g m a i q q x x" can be rearranged to spell "boxing."