(used before a disyllabic verb, often after an adverb like 不bù, 大dà, 稍shāo etc, to indicate that the action applies to sth previously mentioned, as in 稍加改良shāojiāgǎiliáng "make some minor improvements to (it)")
=2
雷
Léi
surname Lei
=2
雷
léi
thunder
(bound form) (military) mine, as in 地雷dìléi land mine
(coll.) to shock; to stun; to astound
(Tw) (coll.) spoiler
(Tw) (coll.) to reveal plot details to (sb)
=3
思
sī
to think
to consider
=3
思
sāi
(obsolete on its own in Standard Chinese) alternative form of 䰄 (“heavily bearded”)