adverb, noun which may take the genitive case particle 'no'
a little; somewhat; to some extent
Used adverbially before verbs and adjectives, or as 多少の before a noun, to mean that something exists or applies to a limited but noticeable degree.
I'm somewhat tired today.
The plan needs some changes.
Noun use referring to how much or how many there is; often appears in patterns such as Xの多少 or 多少にかかわらず.
Regardless of the number of participants, the meeting will be held as scheduled.
There is some difference between their two opinions.
This apartment is a bit small, but it's close to the station.
We welcome donations regardless of the amount.
多少 can suggest a slightly larger or more definite amount than 幾分, which sounds softer and more tentative.
多少 can suggest a slightly larger or vaguer amount than 若干, which sounds more precise and limited.
多少 is the common modern word for 'somewhat/a little', while 何分 (as in 何分か) is stiffer and less used in casual speech.
多少 emphasizes 'to some extent, however small' and is common in formal or written contexts, similar in register to やや.
多少 is a plain, businesslike way to say 'to some extent', while いささか leans more literary and often implies the speaker finds the degree notable.