Ashi slanted towards the tip of the blade.
'Rat's feet'. Small numerous ashi.
Lines of hamon, which are not completely aligned, creating a gap or a break in hamon. It's common in Yamato-den blades.
An example of kuichigaiba can be seen here: Hataraki @ NihontoCraft.com.
Activity which looks like stray lines from hamon into the [ji].
Activity in the hamon similar to kinsuji, but resembling lightning. Inazuma runs out from the hamon into the ji and then back into hamon. Kinsuji is found only inside the hamon.
An example of inazuma can be seen here: Hataraki @ NihontoCraft.com.
(lit. 'golden line') A small straight whitish line of nie inside the hamon, similar to inazuma.
An example of kinsuji can be seen here: Hataraki @ NihontoCraft.com.
'Triple hamon'. See nijuba.
'Double hamon'. A second line of hamon which appears parallel to main hamon line. Triple line of hamon can be referred to as sanjuba.
An example of nijuba can be seen here: Hataraki @ NihontoCraft.com.