Loudness can be represented as a state or as a change.
As additions, there can be instructions like subito („suddenly“, abbreviated sub.) or più („more“) and meno („less“).
However, since the ukulele is in itself a quiet instrument, these instructions can only be realized within narrow limits, at least when playing solo.
In most cases, no distinction is made between decrescendo and diminuendo. In some composers (e.g. Schubert) decrescendo denotes only a gradual lowering of volume, diminuendo on the other hand also a gradual and careful slowing down, especially at the end of a piece.1) Calando, deficiendo and perdendosi are rare and largely synonymous.
Marcato is used mainly to make melody notes stand out from the musical environment. Accents can also be used to emphasize syncopation (i.e. rhythmic shifts) by reinforcing unaccented notes from the beat.
Ukulele Dynamics (2018)
Aldrine Guerrero: Strumming Dynamics (2011)
Aldrine Guerrero: Strumming Dynamics (2011)